Turn On Better Weather and Confirm the New Rain Is Working
Better Weather changes how rain and snow look, so you will only notice it during a weather event. Here is how to activate it and test it.
Activate the pack
1. From the main menu, open Settings.
2. Go to Global Resources.
3. Under My Packs, find Better Weather and click Activate. It moves into the Active list.
4. Back out to the main menu so the change applies, then load a world.
If you only want the effect in one world, open that world's Edit screen instead. Go to Resource Packs, then activate Better Weather there.
Test it with a rainstorm
1. Load a world with cheats enabled, or a test copy of your main world.
2. Stand in a plains or forest biome. These get rain, not snow.
3. Open chat and type /weather rain.
4. Look around while the rain falls. The raindrops should look finer and more delicate than vanilla rain, and the screen should be less cluttered.
5. Try /weather thunder to see a heavier storm.
6. Type /weather clear when you are done.
To compare, deactivate the pack in Global Resources and run the same test again. You will see how much the vanilla rain blocks your view. Since the pack is built not to cost performance, you can leave it on all the time.