Set Interface "FSUIPC/SimConnect" or "Simconnect" for FSX/P3D.
Set Path from FSX/P3D.
Set Weather-Mode "Weather-File"
If you find an error, then please give me exactly about your system. Which sim (FSX / P3D / Xplane). Which connection (FSUIPC / SimConnect / FSrealWX-Bridge). Which OS.