The mod will add new weather effects to minecraft. True, so far it is only one, but what kind is chemical precipitation. That is, with a small probability, sometimes chemical precipitation will fall out instead of ordinary rain, which will harm the player, which will make the game a little more interesting and hardcore. In the future, the author promises to add more interesting types of weather.
How to install the mod:
Install all additional mods if specified.
Download mod and copy to .minecraft / mods
Launch the forge version of the game in the launcher.