diff --git a/weather_datasources.yaml b/weather_datasources.yaml
index 1687c58ee03c108d935a74e760a37499416a3b21..d0f80aedf4b3303a8323ba634893df278c7a17a6 100644
--- a/weather_datasources.yaml
+++ b/weather_datasources.yaml
@@ -43,3 +43,48 @@ datasources:
        - 3001 # Instantaneous RH at 2m (%)
        - 2001 # Precipitation (mm)
        - 4002 # Instantaneous wind speed at 2m
+  -
+    id: no.nibio.mockweatherdatasource
+    name: "Mock Weather Data Source"
+    description: "Placeholder datasource providing same data for all locations and periods"
+    public_URL: https://test.madiphs.org/mwds/
+    organization: 
+      name: NIBIO
+      country: Norway
+      address: Høgskoleveien 7
+      postal_code: "1431"
+      city: Ås
+      email: tor-einar.skog@nibio.no
+      url: https://nibio.no
+    endpoint: https://test.madiphs.org/mwds/weather_data
+    authentication_type: NONE
+    needs_data_control: false
+    temporal:
+      historic:
+        start: 2021-01-01
+        end: 2021-12-31
+      forecast: 0
+      intervals:
+        - 3600
+        - 86400
+    access_type: location
+    spatial:
+      countries: null
+      geoJSON: |- 
+        {"type": "Sphere"}
+    parameters:
+      common:
+       - 1002 # Average temperature at 2m (Celcius)
+       - 1003 # Minimum temperature at 2m (Celcius)
+       - 1004 # Maximum temperature at 2m (Celcius)
+       - 1112 # Soil temp 10cm
+       - 2001 # Precipitation (mm)
+       - 3002 # Average RH at 2m (%)
+       - 3101 # Leaf wetness
+       - 4002 # Instantaneous wind speed at 2m
+       - 4003 # Mean wind speed at 2m
+       - 5001 # Global radiation (w/sqm)
+
+       - 4002 # Instantaneous wind speed at 2m
+       
+