Currently, I'm planning on trying to add support for this mods weather system by having my tile entities change depending on the current weather around it, however there currently is no api or easy way to do this. If you could implement an api get and set method for local weather that would be a huge help.

Good to know there is interest in me providing an API, it's been on my todo for a long time, I've studied how others have gone about creating an API and even made some attempts, I just need to sit down and finally do it.

Only usable in beta currently, but its something! https://github.com/Corosauce/weather2api_example/blob/master/src/main/java/com/corosus/weather2api_example/EventHandler.java
https://github.com/Corosauce/weather2/tree/1.12.x_development_shaders_testing/src/main/java/weather2/api

Note to self, add nice ways to control the weather too.