Hi, just a little suggestion for an effect that could be applied to the client in game.
Best way to express this I think is with an image, even though it is far from perfect.
So jep, when a player is in a certain weather (such as snow and rain) if the players camera y axis goes up over a certain threshold value then raindrops/snowdrops start to appear on their screen. I.e they're looking up.
Might make the weather have an extra degree of immersiveness.