I quite like having different types of weather pop up in several maps. I think it would be neat to have some maps have specific weather qualities, as it indeed adds to the realism and immersion of the game. The only issue I find here is that the weather files can take a toll on those who have a computer that doesn't handle those sort of files well, thus causing lag. While it's true that users can remove the weather file from the game, this would still prove to be an issue for those who aren't aware that they can remove the file. Nonetheless, there will always be users who have difficulties with the game, and the weather cycles aren't all that hard to remove if lag continues. I really like having lots of interesting weather patterns, done in moderation, of course, and I think it would be wonderful to see more weather cycles in the future.
Interesting topic, Arctic. c: