How do I disable Constant Weather in Minecraft?

I've been having problems with the weather in Minecraft. The weather used to work normally, but for some reason, the weather won't change. Is there a way to fix it? Because the weather is on constant even when I turn off Constant Weather. I just want to have the normal weather cycle.

Solution 1:

The game has a gamerule called: doWeatherCycle. If you set this gamerule to true, you get normal weather.

/gamerule doWeatherCycle true

EDIT:
I just noticed your comment about using the world handler mod. According to this webpage, you have to disable constant weather in the mod options. I suppose you know what that means.

EDIT:
You already disabled this option. Maybe your mod is installed incorrectly? You could try reinstalling it.

Solution 2:

Execute this command:

/weather clear 1000000

That stops rain, snow and thunderstorm for the next 277 hours, which should be enough.