Weather Forecasts

How frequently do forecasts update?

Forecasts update once per hour in most locations.

What are the data sources for forecasts?

The API utilizes multiple short/mid-range high resolution, and coarser resolution long-range models to construct forecasts. These models include the following models: * GFS * NAM * HRRR * ICON DWD * ECMWF * CAMS * SILAM * ACCESS * JMA * AROME Additionally, the API dynamically selects the best available models based on past performance, and then corrects each

What is the spatial resolution of forecasts?

Spatial resolution ranges from 1-13 KM for forecasts. Spatial resolution varies based on region. * North America: 1 KM * Europe: 1-6 KM * Other areas: 9-13 KM

How do I place a custom order for historical forecast data?

This report system is for downloading large amounts of historical forecast data. Or making small one-off requests. Price varies based on the report request properties. Report requests are invoiced separately from subscriptions, and a user's subscription level has no impact on pricing.

What is the difference between High/Low and Max/Min Temperature?

Differences between High/Low Temperature, and why they are useful.

What is the Spatial Resolution of the Minute-to-Minute Precipitation Nowcast?

The spatial resolution of the minute-to-minute precipitation forecasts varies based on the source countries radar data. However, the typical spatial resolution is 1 KM.

What is the update frequency of the Minute-to-Minute Precipitation Nowcast?

The update frequency of the Minute-to-Minute precipitation nowcast ranges from 5-10 minutes.

When is data valid, and how are accumulated values computed?

Unless otherwise stated in the documentation, a value is always valid at the timestamp of the data. That is, it is an instantaneous value. For example (Hourly data): { "precip": 5, "temp": 21, "timestamp_local": "2026-06-02T11:00:00", "timestamp_utc": "

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