Castform transforms with the weather.
| Ruby Sapphire FireRed LeafGreen Emerald | Changes with the weather. |
| Diamond Pearl Platinum HeartGold SoulSilver | CASTFORM transforms with the weather. |
| Black White Black 2 White 2 | Castform transforms with the weather. |
| X Y O.Ruby A.Sapphire | Castform transforms with the weather. |
| Sun Moon Ultra Sun Ultra Moon | The Pokémon transforms with the weather to change its type to Water, Fire, or Ice. |
| Sword Shield B.Diamond S.Pearl | The Pokémon transforms with the weather to change its type to Water, Fire, or Ice. |
| English | Forecast |
|---|---|
| Spanish | Predicción |
| Italian | Previsioni |
| Japanese | てんきや (Tenkiya) |
| German | Prognose |
| French | Météo |