Rainy Weather
Rainy weather in Pokémon GO boosts Bug-, Water-, and Electric-types. Pokémon with these types appear more frequently and give 25% more Stardust when caught. Moves with these types are stronger and do 20% more damage.
Rainy Weather Spawns
Castform (Rainy) will only spawn during Rainy weather.
Rainy Weather Evolutions
Sliggoo can only evolve into Goodra in Rainy weather or when in range of a Rainy Lure Module.