Ok thanks for the clarifications!

As an example, here is the current situation (sunny outside, according to Windy 8% clouds)

But we are in the middle of a yellow area, which would mean medium rain. So it doesn't reflect reality.
Here is for info our local 'rain map' for the same time, where you see no rain at all for this part of the country.

Thanks for your reply, but then the data source is incorrect. I am currently in a yellow zone according to the app, but outside we have a clear blue sky. On satellite images, there are also no clouds in the areas where it’s yellow. So my guess would be: yellow = sunny

Hello, I am new to this app which looks great! I just wanted to understand what the yellow areas are when we indicate the Cloud layer. Is that heavy rain? The grey areas are clouds and blue areas rain, but yellow looks weird, as yesterday, a big part of France was in yellow and there were no heavy rains. Thanks!