The Weather should change during a match
We have one side of the map where it is raining. It would be awesome if the weather replicates the match conditions. The closer the enemy team gets to your base, the worst the weather gets. Once the second outer tower falls, no more rays of sun light in your base. When a inhibitor falls, it starts raining in your base. When the nexus towers fall we could have some thunder sounds and strong wind with some stronger rain.
Look, i know Riot is all about esports and that would add nothing to it, so this weather thing would be optional, just like the hud animations, the wild life and the fires on the torches. If your pc cant take it or you dont care, just disable it.
Im my option, this would be a plus to the match evolution. Howling Abyss changes during the match, this nothing absurd to be done. I guess. Maybe we can even have the top side next to Baron, to start nice and green, and when Baron comes, the region collapses due to the void energy(purple light on the ground) corrupting nature.