Pokémon GO reveals Weather Week event featuring shiny Castform
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Pokémon GO developer Niantic has officially revealed details about Weather Week, a new event coming to the game on Wednesday, March 24 at 10:00 a.m. local time.

What to expect for Pokémon GO Weather Week

Pokémon GO Weather Week will feature Pokémon that “enjoy” rainy and windy conditions. The event will take place over the week of March 24 in two parts. The first half of the week will feature Pokémon that enjoy the rain and the second half, starting on March 27, will feature Pokémon that enjoy the wind.

The weather event will also feature different Pokémon in raids:

  • One-star raids: Slowpoke, Tynamo, and more.
  • Three-star raids: Swellow, Pelipper, and more.
  • Five-star raids: Therian Forme Thundurus.
  • Mega Raids: Mega Houndoom, Mega Manectric, and Mega Abomasnow.

The event will also feature special event-exclusive Field Research and Timed Research which will lead to encounters with event Pokémon. During the event, players will receive extra stardust for catching weather-boosted Pokémon.

This will also be the last chance for players to encounter Therian Forme Thundurus in raids for the time being. Therian Forme Tornadus will rotate in after the event is over.

Pokémon GO Weather Week introduces Shiny Castform

One of the main attractions for Weather Week is shiny Rain Form Castform. This is the first time it will be available in Pokémon GO, and in the entire Pokémon franchise.

According to Joe Merrick of Serebii: “This will be the first time this Shiny Variant will be available in a Pokémon game. Originally Castform’s forms were the same colour, but in Pokémon Home it was discovered they had changed. As Castform isn’t in SWSH, this is the first time it’ll be available in-game. “

Castform made its first appearance in the Pokémon franchise in Pokémon Ruby and Sapphire. It is known as the “weather Pokémon” because it changes forms and types in different weather conditions. It becomes a Water-type in rain, a Fire-type in sun, an Ice-type in hail and a Normal-type the rest of the time.