From Bulbapedia, the community-driven Pokémon encyclopedia.
Forecast (Japanese: てんきや Weatherman) is an Ability introduced in Generation III. It is the signature Ability of Castform.
During weather conditions, Forecast will change the type of a Castform with this Ability. The type of a Pokémon with this Ability will change as follows:
This Ability is made specifically for Castform, so if another Pokémon obtains this Ability, it will have no effect. Conversely, if Castform loses Forecast, it will be stuck in whatever form it was in at that time until it regains Forecast.
If a Pokémon with this Ability has its type changed through other means, such as Soak or Conversion, its type will be reverted to match that of the current weather condition at the end of the turn.
Outside of battle
Forecast has no effect outside of battle.
Pokémon with Forecast
|| First Ability
|| Second Ability
|| Hidden Ability
| Please note that this is only 100% accurate to Generation VII games.
- For Generation III games, ignore Abilities introduced in Generation IV or later and Hidden Abilities.
- For Generation IV games, ignore Hidden Abilities.
- For Generation V games, ignore Abilities introduced in Generation VI or later.
- For Generation VI games, ignore Abilities introduced in Generation VII.
In the anime
In the manga
In the Pokémon Adventures manga
| Rainy form
|| Sunny form
|| Snowy form
| The user's head becomes surrounded by a transparent shape depending on the form it will take. It then transforms its body into an alternate form depending on the weather.
|| First Chapter Used In
|| Castform's head becomes surrounded in a transparent shape depending on the form that it will take and it transforms its body depending on the weather.
| Ruby's Popo
|| Mowing Down Ludicolo
In other languages