WeatherNext 3 Forecast: Reading the Hour That Matters
WeatherNext 3 refreshes global forecasts every hour, with temperature and humidity down to 5 km and most other surface variables at 10 km. That cadence changes how you read a forecast: you stop planning around a daily summary and start planning around the hours that actually affect you. New here? Start with the step-by-step guide, and see how the model works when you want the detail behind the numbers.
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The numbers that shape how you read it
Three figures explain most of what feels different about a WeatherNext 3 forecast.
1 hour Forecasts are generated hourly instead of a few times a day, so a fast-changing afternoon is visible before it arrives.
Forecasts are generated hourly instead of a few times a day, so a fast-changing afternoon is visible before it arrives.
5 km Temperature and humidity resolve at 5 km, with other surface variables around 10 km and upper-air levels near 25 km.
Temperature and humidity resolve at 5 km, with other surface variables around 10 km and upper-air levels near 25 km.
60% Google reports precipitation skill improving by up to 60% against the IMERG reference in its own evaluation.
Google reports precipitation skill improving by up to 60% against the IMERG reference in its own evaluation.
What an hourly forecast actually changes
A six-hourly forecast hides the shape of a day. Hourly output exposes the window where conditions turn, which is usually the only part of the forecast a decision depends on.
Narrow windows
See the two or three hours that matter for a pour, a flight, a shift change or a site visit.
Real shape of the day
Watch a temperature curve or rain band build and fade instead of jumping between six-hourly snapshots.
Satellite-informed detail
Raw geostationary satellite observations feed the model directly, which helps in data-sparse regions.
Earlier warning signs
Use the hourly trend to notice conditions changing before a summary line mentions them.
Variables you can read on a WeatherNext 3 forecast
The model covers the surface and near-surface variables most operational decisions depend on, hour by hour, anywhere on the globe.
Precipitation
Rain and snow bands, intensity and timing, including the extremes that drive flooding and closures.
Temperature
Near-surface temperature at 5 km, the sharpest local resolution in the model.
Humidity
Also resolved at 5 km, which matters for heat stress, drying, frost and fog risk.
Wind speed
Surface and hub-height wind, including the 100 m level used for wind-energy planning.
Radiation and cloud
Solar radiation and cloud cover, the pair that decides photovoltaic output.
Upper air
Higher-altitude levels around 25 km that give context to how a system is evolving.
WeatherNext 3 forecast questions
What people ask before trusting an hourly forecast.
Want the background? Read how the WeatherNext 3 model is built.
Read the forecast, not the average
Start with a place and the hour you care about. The 7-day free trial includes hourly forecasts and local variables, and you can review how it works on your devices before you commit.