It really depends on where in the world you are. I always suggest using local data if possible as nothing comes close to local domain knowledge.

But here are some suggestions:

https://open-meteo.com/ (straight from the models)

https://openweathermap.org/

Depending on how much detail you want, you might even just want to download XyGrib (https://github.com/opengribs/XyGrib/) and download models for your area.