Forecast (Ability)

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Forecast てんきや
Temperamental
Flavor text
Generation III
Changes with the weather.
Generation IV
Castform transforms with the weather.
Generation V
Castform transforms with the weather.
Generation VI
Castform transforms with the weather.
Generation VII
The Pokémon transforms with the weather to change its type to Water, Fire, or Ice.
Generation VIII
Currently unknown
Generation IX
Currently unknown

Forecast (Japanese: てんきや Temperamental) is an Ability introduced in Generation III. It is the signature Ability of Castform.

Effect

In battle

Depending on the weather, Forecast will change Castform's form, which also changes its type. Castform changes as follows:

This Ability has no effect on Pokémon other than Castform.

Forecast does not change Castform's form until after Stealth Rock deals damage.

Generation III and IV

If Castform loses Forecast or Forecast is suppressed with Gastro Acid, it will be stuck in its current form. When it regains Forecast, it will change to the form matching the current weather, even if it is already in the correct form (which resets its type if it had changed due to an effect like Color Change).

Generation V onward

If Castform loses Forecast or Forecast is suppressed with Gastro Acid, it will revert to its normal form and not be able to change form. If Castform regains Forecast, it will change form to match the current weather, unless it would be in its normal form in the current weather.

Outside of battle

Forecast has no effect outside of battle.

Pokémon with Forecast

# Pokémon Types First Ability Second Ability Hidden Ability
0351 Castform Castform
Normal Normal Forecast None None
351S Castform Castform
Fire Fire Forecast None None
351R Castform Castform
Water Water Forecast None None
351H Castform Castform
Ice Ice Forecast None None
Please note that abilities marked with a superscript are only available in the stated generation or later.
  • For Generation III and IV games, ignore Hidden Abilities.

In the anime

Sunny Castform.png
Castform in harsh sunlight
Rainy Castform.png
Castform while raining
Bart Castform Forecast Rain Dance.png
Castform in clear weather
Bart Castform Forecast.png
Castform activating Forecast
Castform's body glows and changes to an alternate form depending on the weather.
Pokémon Method
User First Used In Notes
Castform Castform's body glows white when the weather is calm and it transforms into its Normal form.
Bart's Castform Unfair Weather Friends Debut
Castform Castform's body glows blue when it starts to rain and it transforms into its Rainy form.
Bart's Castform Unfair Weather Friends Water type
Castform Castform's body glows red when there isn't a cloud in the sky and it transforms into its Sunny form.
Bart's Castform Unfair Weather Friends Fire type


In the manga

In the Pokémon Adventures manga


Trivia

In other languages

Language Title
Chinese Cantonese 陰晴不定 Yām-Chìhng Bātdihng
Mandarin 陰晴不定 / 阴晴不定 Yīn-Qíng Bùdìng *
天氣預報 Tiānqì Yùbào *
France Flag.png French Météo
Germany Flag.png German Prognose
Greece Flag.png Greek Πρόβλεψη Próvlepsi
Italy Flag.png Italian Previsioni
South Korea Flag.png Korean 기분파 Gibunpa
Portugal Flag.png Portuguese Previsão do Tempo
Spain Flag.png Spanish Predicción
Vietnam Flag.png Vietnamese Dự báo thời tiết


Abilities affected by weather conditions
Sand VeilSwift SwimChlorophyllForecastDry SkinRain DishSnow CloakHydrationSolar PowerLeaf GuardIce BodyFlower GiftSand ForceSand RushSlush Rush


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