diff --git a/src/Model/River.py b/src/Model/River.py
index 92d62146..7eeafa8d 100644
--- a/src/Model/River.py
+++ b/src/Model/River.py
@@ -66,6 +66,9 @@ from Model.InitialConditionsTemperature.InitialConditionsTemperatureList \
 from Model.BoundaryConditionsTemperature.BoundaryConditionsTemperatureList \
     import BoundaryConditionsTemperatureList
 
+from Model.WeatherParameters.AirTemperatureList \
+    import AirTemperatureList
+
 from Model.GeoTIFF.GeoTIFFList import GeoTIFFList
 from Model.Results.Results import Results
 
@@ -484,6 +487,7 @@ class River(Graph):
         DIFAdisTSList,
         InitialConditionsTemperatureList,
         BoundaryConditionsTemperatureList,
+        AirTemperatureList,
         GeoTIFFList,
         Results
     ]
@@ -521,11 +525,13 @@ class River(Graph):
             status=self._status)
         self._D90AdisTS = D90AdisTSList(status=self._status)
         self._DIFAdisTS = DIFAdisTSList(status=self._status)
-        self._InitialConditionsTemperature = InitialConditionsTemperatureList(
-            status=self._status)
+        self._InitialConditionsTemperature = (
+            InitialConditionsTemperatureList(status=self._status)
+        )
         self._BoundaryConditionsTemperature = (
-            BoundaryConditionsTemperatureList(
-                status=self._status))
+            BoundaryConditionsTemperatureList(status=self._status)
+        )
+        self._AirTemperature = (AirTemperatureList(status=self._status))
 
         self._geotiff = GeoTIFFList(status=self._status)
 
@@ -647,6 +653,8 @@ class River(Graph):
         new._BoundaryConditionsTemperature = \
             BoundaryConditionsTemperatureList._db_load(execute, data)
 
+        new._AirTemperature = AirTemperatureList._db_load(execute, data)
+
         new._geotiff = GeoTIFFList._db_load(execute, data)
 
         return new
@@ -684,6 +692,7 @@ class River(Graph):
 
         objs.append(self._InitialConditionsTemperature)
         objs.append(self._BoundaryConditionsTemperature)
+        objs.append(self._AirTemperature)
 
         objs.append(self._geotiff)
 
@@ -765,6 +774,7 @@ class River(Graph):
             self._D90AdisTS, self._DIFAdisTS,
             self._InitialConditionsTemperature,
             self._BoundaryConditionsTemperature,
+            self._AirTemperature,
             self._geotiff,
         ]
 
@@ -906,6 +916,10 @@ Last export at: @date."""
     def boundary_conditions_temperature(self):
         return self._BoundaryConditionsTemperature
 
+    @property
+    def air_temperature(self):
+        return self._AirTemperature
+
     def get_params(self, solver):
         if solver in self._parameters:
             return self._parameters[solver]
diff --git a/src/Model/WeatherParameters/AirTemperature.py b/src/Model/WeatherParameters/AirTemperature.py
new file mode 100644
index 00000000..212ea52c
--- /dev/null
+++ b/src/Model/WeatherParameters/AirTemperature.py
@@ -0,0 +1,406 @@
+# AirTemperature.py -- Pamhyr
+# Copyright (C) 2023-2025  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+import logging
+
+from tools import (
+    trace, timer,
+    old_pamhyr_date_to_timestamp,
+    date_iso_to_timestamp,
+    date_dmy_to_timestamp,
+)
+
+from Model.Tools.PamhyrDB import SQLSubModel
+from Model.Except import NotImplementedMethodeError
+from Model.Scenario import Scenario
+
+logger = logging.getLogger()
+
+
+class Data(SQLSubModel):
+    _sub_classes = []
+
+    def __init__(self,
+                 data0, data1,
+                 id: int = -1,
+                 types=[float, float],
+                 status=None,
+                 owner_scenario=-1):
+        super(Data, self).__init__(
+            id=id, status=status,
+            owner_scenario=owner_scenario
+        )
+
+        self._types = types
+        self._data = [data0, data1]
+
+    @classmethod
+    def _db_create(cls, execute, ext=""):
+        execute(f"""
+          CREATE TABLE air_temperature_data{ext}(
+            {cls.create_db_add_pamhyr_id()},
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            data0 TEXT NOT NULL,
+            data1 TEXT NOT NULL,
+            {Scenario.create_db_add_scenario()},
+            {Scenario.create_db_add_scenario_fk()},
+          )
+        """)
+
+    @classmethod
+    def _db_update(cls, execute, version, data=None):
+        major, minor, release = version.strip().split(".")
+        created = False
+
+        if major == "0" and int(minor) < 2:
+            if cls.is_table_exists(
+                    execute, "air_temperature_data"):
+                cls._db_update_to_0_2_0(execute, data)
+            else:
+                cls._db_create(execute)
+
+        return True
+
+    @classmethod
+    def _db_load(cls, execute, data=None):
+        new = []
+        status = data['status']
+        scenario = data["scenario"]
+        loaded = data['loaded_pid']
+
+        if scenario is None:
+            return new
+
+        table = execute(
+            "SELECT pamhyr_id, deleted, data0, data1, scenario " +
+            "FROM air_temperature_data " +
+            f"WHERE scenario = {scenario.id} " +
+            f"AND pamhyr_id NOT IN ({', '.join(map(str, loaded))}) "
+        )
+
+        if table is not None:
+            for row in table:
+                it = iter(row)
+
+                pid = next(it)
+                deleted = (next(it) == 1)
+                data0 = next(it)
+                data1 = next(it)
+                owner_scenario = next(it)
+
+                lc = cls(
+                    data0, data1,
+                    id=pid, status=status,
+                    owner_scenario=owner_scenario
+                )
+                if deleted:
+                    lc.set_as_deleted()
+
+                loaded.add(pid)
+                new.append(lc)
+
+        data["scenario"] = scenario.parent
+        new += cls._db_load(execute, data)
+        data["scenario"] = scenario
+
+        return new
+
+    def _db_save(self, execute, data=None):
+        if not self.must_be_saved():
+            return True
+
+        execute(
+            "INSERT INTO " +
+            "air_temperature_data(pamhyr_id, deleted," +
+            "data0, data1, scenario) " +
+            "VALUES (" +
+            f"{self.id}, {self._db_format(self.is_deleted())}, " +
+            f"{self._data[0]}, {self._data[1]}, " +
+            f"{self._status.scenario_id}" +
+            ")"
+        )
+
+        return True
+
+    def __getitem__(self, key):
+        return self._types[key](self._data[key])
+
+    def __setitem__(self, key, value):
+        self._data[key] = self._types[key](value)
+
+
+class AirTemperature(SQLSubModel):
+    _sub_classes = [Data]
+
+    def __init__(self, id: int = -1, int = -1,
+                 name: str = "", status=None,
+                 owner_scenario=-1):
+        super(AirTemperature, self).__init__(
+            id=id, status=status,
+            owner_scenario=owner_scenario
+        )
+
+        self._status = status
+
+        self._reach = None
+        self._begin_rk = 0.0
+        self._end_rk = 0.0
+        self._data = []
+        self._header = ["time", "rate"]
+        self._types = [self.time_convert, float]
+
+    @classmethod
+    def _db_create(cls, execute, ext=""):
+        execute(f"""
+          CREATE TABLE air_temperature{ext}(
+            {cls.create_db_add_pamhyr_id()},
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            reach INTEGER NOT NULL,
+            begin_rk REAL NOT NULL,
+            end_rk REAL NOT NULL,
+            {Scenario.create_db_add_scenario()},
+            {Scenario.create_db_add_scenario_fk()},
+            FOREIGN KEY(reach) REFERENCES river_reach(pamhyr_id)
+          )
+        """)
+
+        if ext != "":
+            return True
+
+        return cls._create_submodel(execute)
+
+    @classmethod
+    def _db_update(cls, execute, version, data=None):
+        major, minor, release = version.strip().split(".")
+        created = False
+
+        if major == "0" and int(minor) < 2:
+            if cls.is_table_exists(execute, "air_temperature"):
+                cls._db_update_to_0_2_0(execute, data)
+            else:
+                cls._db_create(execute)
+                created = True
+
+        if not created:
+            return cls._update_submodel(execute, version, data)
+
+        return True
+
+    @classmethod
+    def _db_load(cls, execute, data=None):
+        new = []
+        status = data['status']
+        scenario = data["scenario"]
+        loaded = data['loaded_pid']
+
+        if scenario is None:
+            return new
+
+        table = execute(
+            "SELECT pamhyr_id, deleted, reach, " +
+            "begin_rk, end_rk, scenario " +
+            "FROM air_temperature " +
+            f"WHERE scenario = {scenario.id} " +
+            f"AND pamhyr_id NOT IN ({', '.join(map(str, loaded))}) "
+        )
+
+        if table is not None:
+            for row in table:
+                it = iter(row)
+
+                pid = next(it)
+                deleted = (next(it) == 1)
+                reach = next(it)
+                brk = next(it)
+                erk = next(it)
+                owner_scenario = next(it)
+
+        data["scenario"] = scenario.parent
+        new += cls._db_load(execute, data)
+        data["scenario"] = scenario
+
+        return new
+
+    def _db_save(self, execute, data=None):
+        if not self.must_be_saved():
+            return True
+
+        execute(
+            f"DELETE FROM air_temperature " +
+            f"WHERE pamhyr_id = {self.id} " +
+            f"AND scenario = {self._status.scenario_id}"
+        )
+        execute(
+            f"DELETE FROM air_temperature_data " +
+            f"WHERE scenario = {self._status.scenario_id}"
+        )
+
+        execute(
+            "INSERT INTO " +
+            "air_temperature(pamhyr_id, deleted, " +
+            "reach, begin_rk, end_rk, scenario) " +
+            "VALUES (" +
+            f"{self.id}, {self._db_format(self.is_deleted())}, {self.reach}, " +
+            f"{self._begin_rk}, {self._end_rk}, " +
+            f"{self._status.scenario_id}" +
+            ")"
+        )
+        ind = 0
+        for d in self._data:
+            data["ind"] = ind
+
+            d._db_save(execute, data)
+
+            ind += 1
+
+        return True
+
+    def _data_traversal(self,
+                        predicate=lambda obj, data: True,
+                        modifier=lambda obj, data: None,
+                        data={}):
+        if predicate(self, data):
+            modifier(self, data)
+
+        for d in self._data:
+            d._data_traversal(predicate, modifier, data)
+
+    def __len__(self):
+        return len(
+            list(
+                filter(
+                    lambda el: el is not None and not el.is_deleted(),
+                    self._data
+                )
+            )
+        )
+
+    @classmethod
+    def time_convert(cls, data):
+        if type(data) is str:
+            if data.count("-") == 2:
+                return date_iso_to_timestamp(data)
+            if data.count("/") == 2:
+                return date_dmy_to_timestamp(data)
+            if data.count(":") == 3:
+                return old_pamhyr_date_to_timestamp(data)
+            if data.count(":") == 2:
+                return old_pamhyr_date_to_timestamp("00:" + data)
+            if data.count(".") == 1:
+                return round(float(data))
+
+        return int(data)
+
+    @property
+    def reach(self):
+        return self._reach
+
+    @reach.setter
+    def reach(self, reach):
+        self._reach = reach
+        self.modified()
+
+    @property
+    def header(self):
+        return self._header.copy()
+
+    @header.setter
+    def header(self, header):
+        self._header = header
+        self.modified()
+
+    @property
+    def data(self):
+        return list(
+            filter(
+                lambda el: el is not None and not el.is_deleted(),
+                self._data
+            )
+        )
+
+    @property
+    def begin_rk(self):
+        return self._begin_rk
+
+    @begin_rk.setter
+    def begin_rk(self, begin_rk):
+        self._begin_rk = begin_rk
+        self.modified()
+
+    @property
+    def end_rk(self):
+        return self._end_rk
+
+    @end_rk.setter
+    def end_rk(self, end_rk):
+        self._end_rk = end_rk
+        self.modified()
+
+    @property
+    def _default_0(self):
+        return self._types[0](0)
+
+    @property
+    def _default_1(self):
+        return self._types[1](0.0)
+
+    def add(self, index: int):
+        value = Data(self._default_0, self._default_1, status=self._status)
+        self._data.insert(index, value)
+        self.modified()
+        return value
+
+    def insert(self, index: int, data: Data):
+        self._data.insert(index, data)
+        self.modified()
+
+    def delete_i(self, indexes):
+        self._data = list(
+            map(
+                lambda e: e[1].set_as_deleted(),
+                filter(
+                    lambda e: e[0] not in indexes,
+                    enumerate(self.data)
+                )
+            )
+        )
+        self.modified()
+
+    def index(self, bc):
+        self._data.index(bc)
+
+    def get_i(self, index: int):
+        return self._data[index]
+
+    def get_range(self, _range):
+        lst = []
+        for r in _range:
+            lst.append(r)
+        return lst
+
+    def _set_i_c_v(self, index: int, column: int, value):
+        v = self._data[index]
+        v[column] = self._types[column](value)
+        self._data[index] = v
+        self.modified()
+
+    def set_i_0(self, index: int, value):
+        self._set_i_c_v(index, 0, value)
+
+    def set_i_1(self, index: int, value):
+        self._set_i_c_v(index, 1, value)
diff --git a/src/Model/WeatherParameters/AirTemperatureList.py b/src/Model/WeatherParameters/AirTemperatureList.py
new file mode 100644
index 00000000..3875125d
--- /dev/null
+++ b/src/Model/WeatherParameters/AirTemperatureList.py
@@ -0,0 +1,73 @@
+# AirTemperatureList.py -- Pamhyr
+# Copyright (C) 2023-2025  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+from copy import copy
+from tools import trace, timer
+
+from Model.Tools.PamhyrListExt import PamhyrModelList
+from Model.Except import NotImplementedMethodeError
+
+from Model.WeatherParameters.AirTemperature \
+    import AirTemperature
+
+
+class AirTemperatureList(PamhyrModelList):
+    _sub_classes = [
+        AirTemperature,
+    ]
+
+    @classmethod
+    def _db_load(cls, execute, data=None):
+        new = cls(status=data['status'])
+
+        if data is None:
+            data = {}
+
+        new._lst = AirTemperature._db_load(
+            execute, data
+        )
+
+        return new
+
+    def _db_save(self, execute, data=None):
+        execute(
+            "DELETE FROM air_temperature " +
+            f"WHERE scenario = {self._status.scenario_id}"
+        )
+        execute(
+            "DELETE FROM air_temperature_data " +
+            f"WHERE scenario = {self._status.scenario_id}"
+        )
+
+        if data is None:
+            data = {}
+
+        for lc in self._lst:
+            lc._db_save(execute, data=data)
+
+        return True
+
+    def new(self, index, pollutant):
+        n = AirTemperature(pollutant=pollutant, status=self._status)
+        self._lst.insert(index, n)
+        self._status.modified()
+        return n
+
+    @property
+    def Air_Temperature_List(self):
+        return self.lst
diff --git a/src/View/MainWindow.py b/src/View/MainWindow.py
index 7a25f529..104f5c50 100644
--- a/src/View/MainWindow.py
+++ b/src/View/MainWindow.py
@@ -114,6 +114,10 @@ from View.BoundaryConditionsTemperature.Window import (
     BoundaryConditionsTemperatureWindow
 )
 
+from View.WeatherParameters.Window import (
+    WeatherParametersWindow
+)
+
 from Solver.Solvers import GenericSolver
 
 from Model.Results.Results import Results
@@ -282,6 +286,8 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
                 self.open_initial_conditions_temperature,
             "action_menu_boundary_conditions_temperature":
                 self.open_boundary_conditions_temperature,
+            "action_menu_weather_parameters":
+                self.open_weather_parameters,
             "action_menu_dif": self.open_dif,
             "action_menu_d90": self.open_d90,
             "action_menu_pollutants": self.open_pollutants,
@@ -1037,6 +1043,21 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
     # SUB WINDOWS #
     ###############
 
+    def open_weather_parameters(self):
+        river = self._study.river
+        
+        if self.sub_window_exists(
+            WeatherParametersWindow,
+            data=[self._study, None]
+        ):
+            return
+
+        bound = WeatherParametersWindow(
+            study=self._study,
+            parent=self,
+        )
+        bound.show()
+
     def open_boundary_conditions_temperature(self):
         river = self._study.river
         bclist = river.boundary_conditions_temperature.lst
diff --git a/src/View/WeatherParameters/Table.py b/src/View/WeatherParameters/Table.py
new file mode 100644
index 00000000..bc884ac7
--- /dev/null
+++ b/src/View/WeatherParameters/Table.py
@@ -0,0 +1,240 @@
+# Table.py -- Pamhyr
+# Copyright (C) 2023-2025  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+import logging
+import traceback
+from tools import trace, timer
+
+from PyQt5.QtCore import (
+    Qt, QVariant, QAbstractTableModel,
+    QCoreApplication, QModelIndex, pyqtSlot,
+    QRect,
+)
+
+from PyQt5.QtWidgets import (
+    QDialogButtonBox, QPushButton, QLineEdit,
+    QFileDialog, QTableView, QAbstractItemView,
+    QUndoStack, QShortcut, QAction, QItemDelegate,
+    QComboBox,
+)
+
+from View.Tools.PamhyrTable import PamhyrTableModel
+
+from View.WeatherParameters.UndoCommand import (
+    SetCommand, AddCommand, SetCommandSpec,
+    DelCommand,
+)
+
+logger = logging.getLogger()
+
+_translate = QCoreApplication.translate
+
+
+class ComboBoxDelegate(QItemDelegate):
+    def __init__(self, data=None, _weather_param_lst=None,
+                 trad=None, parent=None, mode="reaches"):
+        super(ComboBoxDelegate, self).__init__(parent)
+
+        self._data = data
+        self._mode = mode
+        self._trad = trad
+        # self._weather_param_lst = _weather_param_lst
+
+    def createEditor(self, parent, option, index):
+        self.editor = QComboBox(parent)
+
+        val = []
+        if self._mode == "rk":
+            reach_id = self._weather_param_lst[index.row()].reach
+
+            reach = next(filter(lambda edge: edge.id == reach_id,
+                                self._data.edges()), None)
+
+            if reach_id is not None:
+                val = list(
+                    map(
+                        lambda rk: str(rk), reach.reach.get_rk()
+                    )
+                )
+        else:
+            val = list(
+                map(
+                    lambda n: n.name, self._data.edges()
+                )
+            )
+
+        self.editor.addItems(
+            [self._trad['not_associated']] +
+            val
+        )
+
+        self.editor.setCurrentText(str(index.data(Qt.DisplayRole)))
+        return self.editor
+
+    def setEditorData(self, editor, index):
+        value = index.data(Qt.DisplayRole)
+        self.editor.currentTextChanged.connect(self.currentItemChanged)
+
+    def setModelData(self, editor, model, index):
+        text = str(editor.currentText())
+        model.setData(index, text)
+        editor.close()
+        editor.deleteLater()
+
+    def updateEditorGeometry(self, editor, option, index):
+        r = QRect(option.rect)
+        if self.editor.windowFlags() & Qt.Popup:
+            if editor.parent() is not None:
+                r.setTopLeft(self.editor.parent().mapToGlobal(r.topLeft()))
+        editor.setGeometry(r)
+
+    @pyqtSlot()
+    def currentItemChanged(self):
+        self.commitData.emit(self.sender())
+
+
+class WeatherParametersTableModel(PamhyrTableModel):
+    def __init__(self, river=None, data=None, **kwargs):
+        self._river = river
+
+        super(WeatherParametersTableModel, self).__init__(data=data, **kwargs)
+
+        self._data = data
+        print("self._data: ", self._data)
+
+    def _setup_lst(self):
+        # self._lst = list(
+        #     filter(
+        #         lambda ica: ica._deleted is False,
+        #         self._data._data
+        #     )
+        # )
+        self._lst = self._data._data
+
+    def rowCount(self, parent):
+        return len(self._lst)
+
+    def data(self, index, role):
+        if role != Qt.ItemDataRole.DisplayRole:
+            return QVariant()
+
+        row = index.row()
+        column = index.column()
+
+        if self._headers[column] == "name":
+            n = self._lst[row].name
+            if n is None or n == "":
+                return self._trad['not_associated']
+            return n
+        elif self._headers[column] == "reach":
+            n = self._lst[row].reach
+            if n is None:
+                return self._trad['not_associated']
+            return next(filter(
+                lambda edge: edge.id == n, self._river.edges()
+            )).name
+        elif self._headers[column] == "start_rk":
+            n = self._lst[row].start_rk
+            if n is None:
+                return self._trad['not_associated']
+            return n
+        elif self._headers[column] == "end_rk":
+            n = self._lst[row].end_rk
+            if n is None:
+                return self._trad['not_associated']
+            return n
+        elif self._headers[column] == "value":
+            n = self._lst[row].value
+            if n is None:
+                return self._trad['not_associated']
+            return n
+            return n
+
+        return QVariant()
+
+    def setData(self, index, value, role=Qt.EditRole):
+        if not index.isValid() or role != Qt.EditRole:
+            return False
+
+        if self.is_same_data(index, value):
+            return False
+
+        row = index.row()
+        column = index.column()
+
+        try:
+            if self._headers[column] != "reach":
+                self._undo.push(
+                    SetCommandSpec(
+                        self._lst, row, self._headers[column], value
+                    )
+                )
+            elif self._headers[column] == "reach":
+                self._undo.push(
+                    SetCommandSpec(
+                        self._lst, row, self._headers[column],
+                        self._river.edge(value).id
+                    )
+                )
+        except Exception as e:
+            logger.info(e)
+            logger.debug(traceback.format_exc())
+
+        self.dataChanged.emit(index, index)
+        return True
+
+    def add(self, row, parent=QModelIndex()):
+        self.beginInsertRows(parent, row, row - 1)
+
+        self._undo.push(
+            AddCommand(
+                self._data, self._lst, row
+            )
+        )
+
+        self._setup_lst()
+        self.endInsertRows()
+        self.layoutChanged.emit()
+
+    def delete(self, rows, parent=QModelIndex()):
+        self.beginRemoveRows(parent, rows[0], rows[-1])
+
+        data_rows = {
+            id(ica): i for i, ica in enumerate(self._data._data)
+        }
+        self._undo.push(
+            DelCommand(
+                self._data,
+                self._data._data,
+                [data_rows[id(self._lst[row])] for row in rows]
+            )
+        )
+
+        self._setup_lst()
+        self.endRemoveRows()
+        self.layoutChanged.emit()
+
+    def undo(self):
+        self._undo.undo()
+        self._setup_lst()
+        self.layoutChanged.emit()
+
+    def redo(self):
+        self._undo.redo()
+        self._setup_lst()
+        self.layoutChanged.emit()
diff --git a/src/View/WeatherParameters/TableDefault.py b/src/View/WeatherParameters/TableDefault.py
new file mode 100644
index 00000000..c95560d6
--- /dev/null
+++ b/src/View/WeatherParameters/TableDefault.py
@@ -0,0 +1,95 @@
+# Table.py -- Pamhyr
+# Copyright (C) 2023-2025  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+import logging
+import traceback
+from tools import trace, timer
+
+from PyQt5.QtCore import (
+    Qt, QVariant, QAbstractTableModel,
+    QCoreApplication, QModelIndex, pyqtSlot,
+    QRect,
+)
+
+from PyQt5.QtWidgets import (
+    QDialogButtonBox, QPushButton, QLineEdit,
+    QFileDialog, QTableView, QAbstractItemView,
+    QUndoStack, QShortcut, QAction, QItemDelegate,
+    QComboBox,
+)
+
+from View.Tools.PamhyrTable import PamhyrTableModel
+
+from View.WeatherParameters.UndoCommand import (
+    SetCommand,
+)
+
+logger = logging.getLogger()
+
+_translate = QCoreApplication.translate
+
+
+class WeatherParametersTableDefaultModel(PamhyrTableModel):
+    def __init__(self, **kwargs):
+        super(WeatherParametersTableDefaultModel, self).__init__(**kwargs)
+
+    def data(self, index, role):
+        if role != Qt.ItemDataRole.DisplayRole:
+            return QVariant()
+
+        row = index.row()
+        column = index.column()
+
+        if self._headers[column] == "name":
+            return self._data[row]
+        elif self._headers[column] == "value":
+            n = 0.0
+            if n is None:
+                return self._trad['not_associated']
+            return n
+
+        return QVariant()
+
+    def setData(self, index, value, role=Qt.EditRole):
+        if not index.isValid() or role != Qt.EditRole:
+            return False
+
+        row = index.row()
+        column = index.column()
+
+        try:
+            if self._headers[column] is not None:
+                self._undo.push(
+                    SetCommand(
+                        self._data, row, self._headers[column], value
+                    )
+                )
+        except Exception as e:
+            logger.info(e)
+            logger.debug(traceback.format_exc())
+
+        self.dataChanged.emit(index, index)
+        return True
+
+    def undo(self):
+        self._undo.undo()
+        self.layoutChanged.emit()
+
+    def redo(self):
+        self._undo.redo()
+        self.layoutChanged.emit()
diff --git a/src/View/WeatherParameters/UndoCommand.py b/src/View/WeatherParameters/UndoCommand.py
new file mode 100644
index 00000000..984be6e7
--- /dev/null
+++ b/src/View/WeatherParameters/UndoCommand.py
@@ -0,0 +1,195 @@
+# UndoCommand.py -- Pamhyr
+# Copyright (C) 2023-2025  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+from copy import deepcopy
+from tools import trace, timer
+
+from PyQt5.QtWidgets import (
+    QMessageBox, QUndoCommand, QUndoStack,
+)
+
+from Model.InitialConditionsAdisTS.InitialConditionsAdisTS \
+    import InitialConditionsAdisTS
+from Model.InitialConditionsAdisTS.InitialConditionsAdisTSList \
+    import InitialConditionsAdisTSList
+
+
+class SetCommand(QUndoCommand):
+    def __init__(self, data, row, column, new_value):
+        QUndoCommand.__init__(self)
+
+        self._data = data
+        self._row = row
+        self._column = column
+
+        if self._column == "name":
+            self._old = self._data[self._row].name
+        elif self._column == "concentration":
+            self._old = self._data[self._row].concentration
+        elif self._column == "eg":
+            self._old = self._data[self._row].eg
+        elif self._column == "em":
+            self._old = self._data[self._row].em
+        elif self._column == "ed":
+            self._old = self._data[self._row].ed
+
+        _type = float
+        if column == "name":
+            _type = str
+
+        self._new = _type(new_value)
+
+    def undo(self):
+        if self._column == "name":
+            self._data[self._row].name = self._old
+        elif self._column == "concentration":
+            self._data[self._row].concentration = self._old
+        elif self._column == "eg":
+            self._data[self._row].eg = self._old
+        elif self._column == "em":
+            self._data[self._row].em = self._old
+        elif self._column == "ed":
+            self._data[self._row].ed = self._old
+
+    def redo(self):
+        if self._column == "name":
+            self._data[self._row].name = self._new
+        elif self._column == "concentration":
+            self._data[self._row].concentration = self._new
+        elif self._column == "eg":
+            self._data[self._row].eg = self._new
+        elif self._column == "em":
+            self._data[self._row].em = self._new
+        elif self._column == "ed":
+            self._data[self._row].ed = self._new
+
+
+class SetCommandSpec(QUndoCommand):
+    def __init__(self, data, row, column, new_value):
+        QUndoCommand.__init__(self)
+
+        self._data = data
+        self._row = row
+        self._column = column
+
+        if self._column == "name":
+            self._old = self._data[self._row].name
+        elif self._column == "reach":
+            self._old = self._data[self._row].reach
+        elif self._column == "start_rk":
+            self._old = self._data[self._row].start_rk
+        elif self._column == "end_rk":
+            self._old = self._data[self._row].end_rk
+        elif self._column == "concentration":
+            self._old = self._data[self._row].concentration
+        elif self._column == "eg":
+            self._old = self._data[self._row].eg
+        elif self._column == "em":
+            self._old = self._data[self._row].em
+        elif self._column == "ed":
+            self._old = self._data[self._row].ed
+        elif self._column == "rate":
+            self._old = self._data[self._row].rate
+
+        _type = float
+        if column == "name":
+            _type = str
+        elif column == "reach":
+            _type = int
+
+        self._new = _type(new_value)
+
+    def undo(self):
+        if self._column == "name":
+            self._data[self._row].name = self._old
+        elif self._column == "reach":
+            self._data[self._row].reach = self._old
+        elif self._column == "start_rk":
+            self._data[self._row].start_rk = self._old
+        elif self._column == "end_rk":
+            self._data[self._row].end_rk = self._old
+        elif self._column == "concentration":
+            self._data[self._row].concentration = self._old
+        elif self._column == "eg":
+            self._data[self._row].eg = self._old
+        elif self._column == "em":
+            self._data[self._row].em = self._old
+        elif self._column == "ed":
+            self._data[self._row].ed = self._old
+        elif self._column == "rate":
+            self._data[self._row].rate = self._old
+
+    def redo(self):
+        if self._column == "name":
+            self._data[self._row].name = self._new
+        elif self._column == "reach":
+            self._data[self._row].reach = self._new
+        elif self._column == "start_rk":
+            self._data[self._row].start_rk = self._new
+        elif self._column == "end_rk":
+            self._data[self._row].end_rk = self._new
+        elif self._column == "concentration":
+            self._data[self._row].concentration = self._new
+        elif self._column == "eg":
+            self._data[self._row].eg = self._new
+        elif self._column == "em":
+            self._data[self._row].em = self._new
+        elif self._column == "ed":
+            self._data[self._row].ed = self._new
+        elif self._column == "rate":
+            self._data[self._row].rate = self._new
+
+
+class AddCommand(QUndoCommand):
+    def __init__(self, data, ics_spec, index):
+        QUndoCommand.__init__(self)
+
+        self._data = data
+        self._ics_spec = ics_spec
+        self._index = index
+        self._new = None
+
+    def undo(self):
+        self._data.delete_i([self._index])
+
+    def redo(self):
+        if self._new is None:
+            self._new = self._data.new(self._index)
+        else:
+            self._data.insert(self._index, self._new)
+
+
+class DelCommand(QUndoCommand):
+    def __init__(self, data, ics_spec, rows):
+        QUndoCommand.__init__(self)
+
+        self._data = data
+        self._ics_spec = ics_spec
+        self._rows = rows
+
+        self._ic = []
+        for row in rows:
+            self._ic.append((row, self._ics_spec[row]))
+        self._ic.sort()
+
+    def undo(self):
+        for row, el in self._ic:
+            self._data.insert(row, el)
+
+    def redo(self):
+        self._data.delete_i(self._rows)
diff --git a/src/View/WeatherParameters/Window.py b/src/View/WeatherParameters/Window.py
new file mode 100644
index 00000000..4aa0c7ab
--- /dev/null
+++ b/src/View/WeatherParameters/Window.py
@@ -0,0 +1,313 @@
+# Window.py -- Pamhyr
+# Copyright (C) 2023-2025  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+import os
+import logging
+
+from tools import trace, timer, logger_exception
+
+from View.Tools.PamhyrWindow import PamhyrWindow
+
+from PyQt5.QtGui import (
+    QKeySequence, QIcon,
+)
+
+from PyQt5.QtCore import (
+    Qt, QVariant, QAbstractTableModel,
+    QCoreApplication, QModelIndex, pyqtSlot,
+    QRect, QItemSelectionModel,
+)
+
+from PyQt5.QtWidgets import (
+    QDialogButtonBox, QPushButton, QLineEdit,
+    QFileDialog, QTableView, QAbstractItemView,
+    QUndoStack, QShortcut, QAction, QItemDelegate,
+    QComboBox, QVBoxLayout, QHeaderView, QTabWidget,
+    QVBoxLayout, QToolBar, QAction, QToolButton,
+)
+
+from Modules import Modules
+
+from View.WeatherParameters.UndoCommand import (
+    SetCommand,
+)
+
+from View.WeatherParameters.TableDefault import (
+    WeatherParametersTableDefaultModel,
+)
+
+from View.WeatherParameters.Table import (
+    WeatherParametersTableModel, ComboBoxDelegate,
+)
+
+from View.WeatherParameters.translate import WeatherParametersTranslate
+
+from Solver.Mage import Mage8
+
+_translate = QCoreApplication.translate
+
+logger = logging.getLogger()
+
+
+class WeatherParametersWindow(PamhyrWindow):
+    _pamhyr_ui = "WeatherParameters"
+    _pamhyr_name = "Weather parameters"
+
+
+    def __init__(self, data=None, study=None,
+                 config=None, parent=None):
+        self._data = []
+        # self._data.append(data)
+        trad = WeatherParametersTranslate()
+
+        self.weather_params = [trad.get_dict("weather_parameters")[k] for k in trad.get_dict("weather_parameters").keys()]
+        print(f"Weather parameters: {self.weather_params}")
+        name = (
+            trad[self._pamhyr_name] +
+            " - " + study.name
+        )
+
+        super(WeatherParametersWindow, self).__init__(
+            title=name,
+            study=study,
+            config=config,
+            trad=trad,
+            parent=parent
+        )
+
+        self._hash_data.append(data)
+
+        # self._ics_adists_lst = study.river.ic_adists
+
+        self.setup_table()
+
+    def setup_table(self):
+        path_icons = os.path.join(self._get_ui_directory(), f"ressources")
+
+        table_default = self.find(QTableView, f"tableView")
+
+        if self._study.is_editable():
+            editable_headers = self._trad.get_dict("table_headers")
+        else:
+            editable_headers = []
+
+        self._table = WeatherParametersTableDefaultModel(
+            table_view=table_default,
+            table_headers=self._trad.get_dict("table_headers"),
+            editable_headers=editable_headers,
+            delegates={},
+            data=self.weather_params,
+            undo=self._undo_stack,
+            trad=self._trad
+        )
+
+        table_default.setModel(self._table)
+        table_default.setSelectionBehavior(QAbstractItemView.SelectRows)
+        table_default.horizontalHeader().setSectionResizeMode(
+            QHeaderView.Stretch
+        )
+        table_default.setAlternatingRowColors(True)
+
+        layout = self.find(QVBoxLayout, f"verticalLayout_1")
+        toolBar = QToolBar()
+        layout.addWidget(toolBar)
+
+        action_add = QAction(self)
+        action_add.setIcon(QIcon(os.path.join(path_icons, f"add.png")))
+
+        if self._study.is_editable():
+            action_add.triggered.connect(self.add)
+        action_delete = QAction(self)
+        action_delete.setIcon(QIcon(os.path.join(path_icons, f"del.png")))
+
+        if self._study.is_editable():
+            action_delete.triggered.connect(self.delete)
+
+        toolBar.addAction(action_add)
+        toolBar.addAction(action_delete)
+
+        self.table_spec = QTableView()
+        layout.addWidget(self.table_spec)
+
+        self._delegate_reach = ComboBoxDelegate(
+            trad=self._trad,
+            data=self._study.river,
+            parent=self,
+            mode="reaches"
+        )
+        self._delegate_rk = ComboBoxDelegate(
+            trad=self._trad,
+            data=self._study.river,
+            parent=self,
+            mode="rk"
+        )
+
+        if self._study.is_editable():
+            editable_headers_spec = self._trad.get_dict("table_headers_spec")
+        else:
+            editable_headers_spec = []
+
+        self._table_spec = WeatherParametersTableModel(
+            table_view=self.table_spec,
+            table_headers=self._trad.get_dict("table_headers_spec"),
+            editable_headers=editable_headers_spec,
+            delegates={
+                "reach": self._delegate_reach,
+                "start_rk": self._delegate_rk,
+                "end_rk": self._delegate_rk
+            },
+            data=self._data,
+            undo=self._undo_stack,
+            trad=self._trad,
+            river=self._study.river
+        )
+
+        self.table_spec.setModel(self._table_spec)
+        self.table_spec.setSelectionBehavior(QAbstractItemView.SelectRows)
+        self.table_spec.horizontalHeader().setSectionResizeMode(
+            QHeaderView.Stretch
+        )
+        self.table_spec.setAlternatingRowColors(True)
+
+        selectionModel = self.table_spec.selectionModel()
+        index = self.table_spec.model().index(0, 0)
+
+        selectionModel.select(
+            index,
+            QItemSelectionModel.Rows |
+            QItemSelectionModel.ClearAndSelect |
+            QItemSelectionModel.Select
+        )
+        self.table_spec.scrollTo(index)
+
+    def index_selected_row(self):
+        # table = self.find(QTableView, f"tableView")
+        table = self.table_spec
+        rows = table.selectionModel()\
+                    .selectedRows()
+
+        if len(rows) == 0:
+            return 0
+
+        return rows[0].row()
+
+    def index_selected_rows(self):
+        # table = self.find(QTableView, f"tableView")
+        table = self.table_spec
+        return list(
+            # Delete duplicate
+            set(
+                map(
+                    lambda i: i.row(),
+                    table.selectedIndexes()
+                )
+            )
+        )
+
+    def move_up(self):
+        row = self.index_selected_row()
+        self._table.move_up(row)
+        self._update()
+
+    def move_down(self):
+        row = self.index_selected_row()
+        self._table.move_down(row)
+        self._update()
+
+    def _copy(self):
+        rows = list(
+            map(
+                lambda row: row.row(),
+                self.tableView.selectionModel().selectedRows()
+            )
+        )
+
+        table = list(
+            map(
+                lambda eic: list(
+                    map(
+                        lambda k: eic[1][k],
+                        ["rk", "discharge", "elevation"]
+                    )
+                ),
+                filter(
+                    lambda eic: eic[0] in rows,
+                    enumerate(self._ics.lst())
+                )
+            )
+        )
+
+        self.copyTableIntoClipboard(table)
+
+    def _paste(self):
+        header, data = self.parseClipboardTable()
+
+        if len(data) + len(header) == 0:
+            return
+
+        logger.debug(
+            "IC: Paste: " +
+            f"header = {header}, " +
+            f"data = {data}"
+        )
+
+        try:
+            row = self.index_selected_row()
+            # self._table.paste(row, header, data)
+            self._table.paste(row, [], data)
+        except Exception as e:
+            logger_exception(e)
+
+        self._update()
+
+    def _undo(self):
+        undo_stack = self._undo_stack
+        if undo_stack is None or not undo_stack.canUndo():
+            return
+
+        if isinstance(undo_stack.command(undo_stack.index() - 1), SetCommand):
+            self._table.undo()
+        else:
+            self._table_spec.undo()
+
+        self._update()
+
+    def _redo(self):
+        undo_stack = self._undo_stack
+        if undo_stack is None or not undo_stack.canRedo():
+            return
+
+        if isinstance(undo_stack.command(undo_stack.index()), SetCommand):
+            self._table.redo()
+        else:
+            self._table_spec.redo()
+
+        self._update()
+
+    def add(self):
+        rows = self.index_selected_rows()
+        if len(self._data[0]._data) == 0 or len(rows) == 0:
+            self._table_spec.add(0)
+        else:
+            self._table_spec.add(rows[0])
+
+    def delete(self):
+        rows = self.index_selected_rows()
+        if len(rows) == 0:
+            return
+        self._table_spec.delete(rows)
diff --git a/src/View/WeatherParameters/translate.py b/src/View/WeatherParameters/translate.py
new file mode 100644
index 00000000..4da9de4f
--- /dev/null
+++ b/src/View/WeatherParameters/translate.py
@@ -0,0 +1,50 @@
+# translate.py -- Pamhyr
+# Copyright (C) 2023-2025  INRAE
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# -*- coding: utf-8 -*-
+
+from PyQt5.QtCore import QCoreApplication
+
+from View.Translate import MainTranslate
+
+_translate = QCoreApplication.translate
+
+
+class WeatherParametersTranslate(MainTranslate):
+    def __init__(self):
+        super(WeatherParametersTranslate, self).__init__()
+
+        self._dict["Weather parameters"] = _translate(
+            "WeatherParameters", "Weather parameters")
+
+        self._dict["rk"] = self._dict["unit_rk"]
+
+        self._sub_dict["table_headers"] = {
+            "name": self._dict["name"],
+            "value": self._dict["value"]
+        }
+
+        self._sub_dict["table_headers_spec"] = {
+            "name": self._dict["name"],
+            "reach": self._dict["reach"],
+            "start_rk": _translate("Unit", "Start_RK (m)"),
+            "end_rk": _translate("Unit", "End_RK (m)"),
+            "value": self._dict["value"]
+        }
+
+        self._sub_dict["weather_parameters"] = {
+            "air_temperature": _translate("WeatherParameters", "Air temperature")
+        }
\ No newline at end of file
diff --git a/src/View/ui/WeatherParameters.ui b/src/View/ui/WeatherParameters.ui
new file mode 100644
index 00000000..b4fe3e2d
--- /dev/null
+++ b/src/View/ui/WeatherParameters.ui
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1024</width>
+    <height>576</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QGridLayout" name="gridLayout">
+    <item row="0" column="0">
+     <widget class="QSplitter" name="splitter_2">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+      <widget class="QWidget" name="layoutWidget">
+       <layout class="QVBoxLayout" name="verticalLayout_3">
+        <item>
+         <layout class="QHBoxLayout" name="horizontalLayout"/>
+        </item>
+        <item>
+         <widget class="QTableView" name="tableView"/>
+        </item>
+       </layout>
+      </widget>
+      <widget class="QSplitter" name="splitter">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <widget class="QWidget" name="verticalLayoutWidget">
+        <layout class="QVBoxLayout" name="verticalLayout_1"/>
+       </widget>
+       <widget class="QWidget" name="verticalLayoutWidget_2">
+        <layout class="QVBoxLayout" name="verticalLayout_2"/>
+       </widget>
+      </widget>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>1024</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+  <widget class="QToolBar" name="toolBar">
+   <property name="windowTitle">
+    <string>toolBar</string>
+   </property>
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>