I just recently noticed the vanilla `/weather` command only works in the overworld.
To verify, I see this in vanilla code in the command class:
`var0.getServer().overworld().setWeatherParameters(...`

I would like to make the suggestion to have this changed to use the world of the sender (if a player) else fallback to overworld.

I would find this useful because I was hanging out in a custom world, and realized (after much too long) that I couldn't stop the rain.