Like I said, a weather front or storm shoud impact or cover around a zone at the most. maby even 6-10 bases. Second of course the weather would move or HTC would have to designe a swamp terrain for the rainy areas. And Helm, thank you. People could fly above the clouds, or at least bombers could; they would fly out from bases NOT being rained on.
(guy afraid of getting rained on, also ex-groundcrew man, and ex-tanker) omg, did he just say that!?!? oh no, that would involve waiting and climbing

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This is for you fighter guys especially, and for light-medium bomber pilots to a lesser extent: guys it dosen't take that long to climb to 20K so just fly a little higher.