https://fedimeteo.com/

"FediMeteo brings real-time weather updates to the Fediverse, covering cities across Austria, Belgium, Finland, France, Germany, Hungary, Ireland, Italy, Latvia, Netherlands, Poland, Portugal, Spain, Switzerland and the United Kingdom (with more regions coming soon!).
Using the power of #ActivityPub and the simplicity of #snac, FediMeteo posts accurate forecasts and updates directly to your favorite social platform. "