So I was just going on with my day and decided to go to my modded survival world, and all the sudden it started snowing really hard. I realized I forgot to remove this mod from the mods folder and closed minecraft, removed the mod from my folder, and rejoined my minecraft world. It kept thundering so I decided to sleep in a minecraft bed, and the thunder never ended. I think my world got ruined by this mod and the rain will never stop (I am using a big 35 mods modpack I made in this world, and it is really hard to survive in the rain due to the really strong modded mobs spawning in the thunder) I really want to turn my world back to normal so please help me with this. Thank you.

After you've removed the mod,
/gamerule doWeatherCycle true
/weather clear