Google DeepMind Unveils WeatherNext 3, an Hourly-Refreshed AI Weather Model
On September 3, Google DeepMind and Google Research released WeatherNext 3, a new AI weather forecasting model billed as a major breakthrough in how global weather is forecast. The model learns directly from real observational data (real-time satellites and surface weather stations) without relying on traditional numerical forecasting methods, and achieved state-of-the-art performance in Brightband's real-time evaluation.
Confirmed
- Hourly refresh: Generates new high-resolution forecasts every hour, versus roughly 6-hour updates for traditional numerical models — a major boost in timeliness and localization, at 5km resolution.
- Performance gains: Precipitation forecast error reduced by up to 50%, with the biggest improvements in regions where historical forecasts were unreliable; temperature resolution improved 5x.
- Data sources: Training incorporates new data sources such as real-time satellite data (per Brightband information relayed by m5 author PeterWBattaglia).
- Product integration: WeatherNext 3 will power weather features in Google Search, the Gemini app, Google Maps, and Google Maps Platform; developers and researchers can access it via BigQuery.
Why it matters
- Breaking free from traditional numerical forecasting by learning directly from observations, combined with hourly refresh and 5km resolution, makes forecasts more local, more accurate, and faster.
- Up to 50% lower precipitation forecast error delivers direct value for warnings around high-impact weather like heavy rainfall and for public travel planning.
- Open access through Search, Gemini, Maps, and BigQuery means the model's results can quickly reach everyday users and the developer community.
2026-09-03 ~ 2026-09-04 · 11 related posts
Primary sources
- DeepMind launches WeatherNext 3: hourly-refresh AI weather forecasts at 5km resolution — Google DeepMind ·
- DeepMind's WeatherNext 3 cuts precipitation forecast error up to 50% with 5x resolution boost — GoogleDeepMind ·
- WeatherNext 3 now powers forecasts in Google Search, Gemini, and Maps, with data via BigQuery — GoogleDeepMind ·
- [source] DeepMind launches WeatherNext 3: hourly-refresh AI weather forecasts at 5km resolution — Google DeepMind · 2026-09-03
- [source] WeatherNext 3 now powers forecasts in Google Search, Gemini, and Maps, with data via BigQuery — GoogleDeepMind · 2026-09-03
9 near-duplicate retellings: PeterWBattaglia · GoogleDeepMind · GoogleDeepMind · ZoubinGhahrama1 · GoogleDeepMind · Scobleizer · geoffwolfe · GoogleAI · GoogleAI