>>77317
I don't know meteo france, but most mainstream sites and apps (especially the default smartphone apps) use general models combined with algorithms for predictions. This way they can use 1 service for "the whole world".

Specific regional modals are much more more accurate.

Harmonie is the best model for the benelux region (northern france included). The chuncks are the smallest you'll find for the region.

https://www.weerplaza.nl/weerkaarten/harmonie/