a question about the need of an umbrella

Stormy weather?

I live in Belgium, so the weather is rather unhappy.  One day it’s raining, the next shows a sunny sky. The weather is hard tA6DmJo0o predict and so are the results of that in our surroundings.

In my scribbles I notice, I use the weather far too little.  Maybe I could make some magic unhappen because of stormy weather or one of my characters might be afraid of heavy rain.  Figuring out how to use the forecast, is half of the fun.

Can you think up some really fun weather related plot twist in your own story?