Google DeepMind and Google Research launched WeatherNext 3 on September 3, 2026, generating 15-day probabilistic forecasts initialized hourly at up to 5km resolution across 64 ensemble members. It claims up to 50% more accurate precipitation forecasts and is available via the Google Maps Platform Weather API, BigQuery and Earth Engine.
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Google DeepMind launches WeatherNext 3 with hourly 5km AI forecasts and API
Why this matters for founders
Weather-sensitive startups (logistics, agriculture, events, insurance, energy) can pull higher-resolution forecasts through the Maps Platform Weather API instead of building or licensing legacy weather feeds.
Source: Unite.AI
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