I want to know how to reset the configurations for the mod as I’ve been messing around with it and I’ve done something wrong. I need to know asap and also can you please get this mod updated to at least Minecraft version 1.16.5 or greater. Thank you and please get back to me asap.

Corosauce won't do 1.16.5 most likely, as he'll probably do 1.19.

If you're playing on 1.12.2 I suggest using https://github.com/Mrbt0907/weather2-remastered as it introduces rain wrapped storms and so many improvements. Ports to 1.16+ won't be done there either, as the developer who is working on the mod as a passion project still has yet to hear back from Corosauce.

If you don't want to try out the improved version and still just want to reset your config, delete your %appdata%\.minecraft\config\weather2 folder.

Thank you so much.

So update, weather2 is now on 1.18.2. If you have no more questions, it would be helpful to close this issue ^^