diff --git a/scripts/merge_juelich_weather_and_generate_stac.py b/scripts/merge_juelich_weather_and_generate_stac.py
new file mode 100755
index 0000000..6cbefd6
--- /dev/null
+++ b/scripts/merge_juelich_weather_and_generate_stac.py
@@ -0,0 +1,81 @@
+#!/usr/bin/env python
+
+import argparse
+import json
+from pathlib import Path
+
+import pandas as pd
+
+import paint.util.paint_mappings as mappings
+from paint import PAINT_ROOT
+from paint.data.juelich_weather_convertor import JuelichWeatherConvertor
+from paint.data.juelich_weather_stac_item import make_juelich_weather_item
+
+
+def main(arguments: argparse.Namespace) -> None:
+    """
+    Merge the Juelich weather data and save it as an HDF5 file and generate the associate STAC item.
+
+    This script merges all Juelich weather data files and saves the result as as an HDF5 file before generating the
+    appropriate STAC item. Additionally, the metadata for this item is saved for collection creation later.
+
+    Parameters
+    ----------
+    arguments: argparse.Namespace
+        The command line arguments.
+
+    """
+    # check if saved metadata exists and load if required
+    weather_items_path = Path(f"{PAINT_ROOT}/TEMPDATA/weather_items.csv")
+    if weather_items_path.exists():
+        weather_items = pd.read_csv(weather_items_path)
+    else:
+        weather_items_path.parent.mkdir(parents=True, exist_ok=True)
+        weather_items = pd.DataFrame(
+            columns=[
+                mappings.TITLE_KEY,
+                mappings.URL_KEY,
+                mappings.DWD_START,
+                mappings.DWD_END,
+                mappings.LATITUDE_KEY,
+                mappings.LONGITUDE_KEY,
+                mappings.ELEVATION,
+            ]
+        )
+
+    weather_convertor = JuelichWeatherConvertor(
+        input_root_dir=arguments.input_root_dir,
+        output_path=arguments.output_path,
+        file_name=arguments.file_name,
+    )
+    metadata = weather_convertor.merge_and_save_to_hdf5()
+
+    juelich_stac = make_juelich_weather_item(data=metadata)
+    save_path = Path(arguments.output_path) / (mappings.JUELICH_STAC_NAME + ".json")
+    save_path.parent.mkdir(parents=True, exist_ok=True)
+    with open(save_path, "w") as handle:
+        json.dump(juelich_stac, handle)
+
+    weather_items.loc[len(weather_items)] = [
+        "Juelich weather data",
+        mappings.JUELICH_STAC_URL,
+        metadata[mappings.JUELICH_START],
+        metadata[mappings.JUELICH_END],
+        mappings.POWER_PLANT_LAT,
+        mappings.POWER_PLANT_LON,
+        0,  # TODO: Correct Elevation
+    ]
+    weather_items.to_csv(weather_items_path, index=False)
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--input_root_dir", type=str, default=f"{PAINT_ROOT}/ExampleDataKIT/Weather"
+    )
+    parser.add_argument(
+        "--output_path", type=str, default=f"{PAINT_ROOT}/ConvertedData/Weather"
+    )
+    parser.add_argument("--file_name", type=str, default="juelich-weather.h5")
+    args = parser.parse_args()
+    main(arguments=args)