{"city":"Butte","region":"US-MT","country":"US","slug":"butte-mt","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KBTM","name":"Bert Mooney Airport","subCat1HoursPerYear":25,"forecast":"verifying"}],"primaryStation":"KBTM","forecast":{"covered":true,"public":false,"cycle":"2026-08-16T00:00:00Z","guidanceSignal":false,"wording":"No fog signal in NWS guidance for the next 48 hours. August typically brings about 1 hour of dense fog here."},"climatology":{"subCat1HoursPerYear":25,"fogSeasonPeakMonths":["January","November"],"medianEventHours":1,"season":{"summary":"Fog season runs November through March, peaking in January; fog is mostly a 2 AM\u20139 AM phenomenon; typically thinning out by noon; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","November","December"],"timeOfDay":"2 AM\u20139 AM","typicallyClearsBy":"noon"}},"links":{"page":"https://fogatlas.org/fog/city/butte-mt/","stationPages":["https://fogatlas.org/fog/kbtm/"],"verification":"https://fogatlas.org/fog/scorecard/"}}