Observed arrival · 2026-10-31
AtmoAtlas: forecasts checked against the weather
A global weather site and REST API that combines forecast models, adjusts some outputs with observations, and says it measures its accuracy daily.
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- Weather watchers and developers needing forecast data
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- Cloud cover is adjusted against airport METAR reports; regional ICON and 3 km HRRR models are used where available.
Field notes
The homepage lists current conditions for major cities and country-by-country coverage, with country counts including 366 locations for China, 156 for India, and 91 for France. Its model description names ECMWF-AIFS for the general picture, plus ICON in Europe and 3 km HRRR in the United States for shorter-range forecasts. It says cloud cover is adjusted using airport METAR reports; the accuracy figures themselves are not present in this extract.
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