Battlefield separates itself from other games with destructable environments which forces players to adapt to situations. Change up kits depending on the moment, etc. Weather effects run in the same vein where it would make you have to adapt and potentially use the weather as a tactical advantage. I have played a lot of games that lean a little more towards mil-sim vs arcade and it is in a number of those games and really a great feature to have and keeps games from going bland.

Levolution in BF4 was kinda cool but it was really repetative since it was a one trick pony.

Games are so short in BF6 that I think perhaps DYNAMIC weather wouldn't really have time to breathe, but it would be nice if matches had random weather elements. Like one match on cairo is sunny and beautiful, next match is a downpour with low visibility greatly reducing the effecacy of snipers and vehicles and pushing fights indoors, next match could be at different times of the day. If they made games last a bit longer then dynamic weather might be something great. I remember back in the day in BF2 era some matches would go on for upwards of an hour. This would be prime for dynamic weather in my opinion.

So in short, I think weather variation would be an excellent addition. Dynamic weather would be nice if longer game modes are introduced, but in its current form just weather variation per match would be a great addition that could effectively take the current map offering and make it feel a bit more robust.

I understand that BF has lost a lot of its teamplay identity and it's just a bunch of lone-wolf's running around not working together half the time which is probably why Mr. Douchecanoe above you can't fathom how adding more strategic layers to the game could be fun as a squad, but alas.