Get ready, Trainers! Pokémon Go’s Weather Week 2024 is back from March 14 to 18, bringing a storm of exciting bonuses, weather-themed spawns, and a spotlight on the elusive Castform in all its forms. With double Stardust rewards, increased shiny odds for Castform, and exclusive Collection Challenges, this event promises to turn your local weather into a treasure trove of Pokémon surprises.
During the event, Stardust obtained via catching Pokémon will be doubled. You’ll also get more Stardust for catching weather-boosted Pokémon (with the swirly ring around it when you see it on the overworld). Castform also has an increased chance to be shiny.

Below, we list the Pokémon Go “Weather Week” 2024 event perks, like the Collection Challenges.
Pokémon Go ’Weather Week’ 2024 event Collection Challenges
During Pokémon Go’s Weather Week 2024 event, players can participate in special Collection Challenges that focus on weather-related Pokémon, particularly Castform and its various weather forms. The Weather Week Collection Challenge requires catching Pokémon like Paras, Drifloon, Helioptile, Amaura, and Castform, rewarding players with 7,500 Stardust. Additionally, the Castform Collection Challenge involves collecting Regular, Sunny, Rainy, and Snowy Castform forms, offering rewards of 5,000 Stardust and an Incense. These challenges complement event-exclusive field research tasks, which include catching Pokémon with weather boosts to earn encounters with Castform and other featured Pokémon, making it a prime opportunity to expand your collection and earn valuable rewards.
There are two Collection Challenges for “Weather Week.”
Weather Week Collection Challenge: Castform
Catch Castform in its different forms (as listed below) for a reward:
- Castform
- Castform (rainy)
- Castform (snowy)
- Castform (sunny)
Rewards: 5,000 Stardust, 1 Incense
Weather Week Collection Challenge
Catch the following to get more rewards:
- Helioptile
- Amaura
- Paras
- Drifloon
- Castform
Rewards: 7,500 Stardust
Pokémon Go ’Weather Week’ 2024 event Field Research and rewards
During Pokémon Go’s Weather Week 2024 event, players can complete special Field Research tasks that involve catching Pokémon with Weather Boost. These tasks reward encounters with various Pokémon such as Paras, Drifloon, Helioptile, Amaura, and different forms of Castform, including Sunny, Rainy, and Snowy variants. Completing these tasks also grants Stardust rewards, with one task offering 750 Stardust for catching 7 boosted Pokémon and others providing encounters with Castform and its forms. Additionally, there are Collection Challenges tied to these tasks that reward Stardust and Incense upon completion. The event also features increased chances to encounter shiny Castform and offers bonuses like double Stardust for catching Pokémon, making it an excellent opportunity to gather valuable rewards and complete weather-themed collections.
Spinning a PokéStop during the event may net you one of these research tasks:
- Catch 5 Pokémon with weather boost (Paras, Drifloon, Helioptile, or Amaura encounter)
- Catch 7 Pokémon with weather boost (750 Stardust)
- Catch 10 Pokémon with weather boost (Castform encounter)
The Castform you get from the “catch 10 Pokémon” encounter may be any of its weather variants.
Pokémon Go ’Weather Week’ 2024 event boosted spawns
During Pokémon Go’s Weather Week 2024 event, which runs from March 14 to March 18, players can enjoy boosted spawns of various Pokémon that correspond to different weather conditions. Castform, the event’s highlight, appears more frequently in its various weather forms-Sunny, Rainy, Snowy, Partly Cloudy, Cloudy, Windy, and Fog-matching the in-game weather. Other Pokémon such as Paras, Drifloon, Helioptile, and Amaura also have increased spawn rates regardless of weather, while specific species like Cacnea, Lotad, Snover, and Gastly spawn more often under their respective weather boosts. This event provides ample opportunities for players to catch weather-boosted Pokémon, earn extra Stardust, and encounter shiny Castform more frequently.
These Pokémon will be spawning more frequently during the event:
- Paras
- Lickitung
- Castform
- Drifloon
- Helioptile
- Amaura
There are also some spawns that will only occur during specific weather times:
- Cacnea (sunny)
- Sunny Castform (sunny)
- Lotad (rain)
- Rainy Castform (rain)
- Snowy Castform (snow)
- Snover (snow)
- Roggenrola (partly cloudy)
- Spritzee (cloudy)
- Swablu (windy)
- Gastly (foggy)
Pokémon Go ’Weather Week’ 2024 event raid targets
During Pokémon Go’s Weather Week 2024 event, raid targets include a variety of Pokémon across different raid tiers. One-star raids feature Poliwhirl, Gastly, Hippopotas, and Amaura. Three-star raids include Charizard, Lickitung, and Drampa. The five-star raid boss is Regice, while Mega Tyranitar appears in Mega Raids. These raid bosses align with the event’s weather theme, complementing the increased appearances of Castform and weather-boosted Pokémon in the wild.
How can I maximize my chances of catching shiny Castform during Weather Week 2024
To maximize your chances of catching shiny Castform during Weather Week 2024 in Pokémon Go, follow these key strategies:
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Hunt Castform in areas that match its specific weather forms: Normal Castform appears in clear, cloudy, or windy weather; Sunny Castform in sunny weather; Rainy Castform in rainy weather; and Snowy Castform in snowy or foggy weather. Being in the right weather condition triggers the Weather Boost, increasing spawn rates for that Castform variant.
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Use a combination of Lure Modules on PokéStops or Gyms located in these weather conditions, activate Incense, and move around the area to stack spawn rate boosts and encounter more Castforms quickly.
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Take advantage of the event’s increased shiny encounter rate for Castform, which is higher throughout Weather Week (March 14-18, 2024).
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Complete the Weather Week-themed Field Research tasks and Collection Challenges that reward encounters with all Castform forms, providing additional opportunities to catch shiny variants.
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Prioritize catching Castform with the Weather Boost icon (a cloud symbol) on the encounter screen to earn extra Stardust and confirm the boosted spawn, which correlates with higher shiny chances.
By focusing on the correct weather conditions, using spawn-enhancing items, and engaging with event research tasks, you can efficiently increase your shiny Castform encounters during Weather Week 2024.
How many encounters with weather-boosted Castform do I need to increase shiny odds
Weather-boosted Castform encounters do not inherently increase shiny odds; the shiny rate remains the same whether the Castform is weather-boosted or not. However, during Weather Week 2024, the shiny rate for Castform is significantly increased compared to normal wild encounters, estimated to be at least 1 in 125 or possibly as high as 1 in 64, compared to the usual 1 in 512 shiny rate.
Because shiny odds are fixed per encounter, increasing your number of encounters is the best way to improve your chances. For example, if the shiny rate is about 1 in 125, you would statistically need to encounter roughly 125 Castform to have a good chance of finding one shiny. Since the event lasts four days and boosts Castform spawns in their respective weather conditions, focusing on catching as many weather-boosted Castform as possible will maximize your shiny hunting efficiency.
In summary:
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Weather boost does not directly increase shiny odds per encounter.
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Weather Week 2024 increases shiny odds for Castform overall, roughly between 1:125 and 1:64.
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To maximize shiny chances, catch as many weather-boosted Castform as possible during the event.
