Although I wouldnt want global weather, meaning the entire arena is raining, and socked in...this is ww2 afterall and there werent many all weather aircraft, I would like squalls and such to randomly pass through.
Ive often seen areas were the cloud comes right down to the sea, looking like a squall. It would be a good place to hide a fleet. Or if one pass over land, it may throw off an attack at a key base which would be cool. Something the size of 2 -4 sectors blowing through would be nice.