{"city":"Fort Smith","region":"US-AR","country":"US","slug":"fort-smith-ar","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KFSM","name":"Fort Smith Regional Airport","subCat1HoursPerYear":46,"forecast":"verifying"}],"primaryStation":"KFSM","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. dense fog (visibility under a mile) is rare here in August."},"climatology":{"subCat1HoursPerYear":46,"fogSeasonPeakMonths":["January","December"],"medianEventHours":2,"season":{"summary":"Fog season runs October through April, peaking in January; fog is mostly a 4 AM\u20138 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","April","October","November","December"],"timeOfDay":"4 AM\u20138 AM","typicallyClearsBy":"9 AM"}},"links":{"page":"https://fogatlas.org/fog/city/fort-smith-ar/","stationPages":["https://fogatlas.org/fog/kfsm/"],"verification":"https://fogatlas.org/fog/scorecard/"}}