{"city":"Sioux Falls","region":"US-SD","country":"US","slug":"sioux-falls-sd","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KFSD","name":"Sioux Falls Regional Airport","subCat1HoursPerYear":49,"forecast":"verifying"}],"primaryStation":"KFSD","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":49,"fogSeasonPeakMonths":["December","January"],"medianEventHours":2,"season":{"summary":"Fog season runs November through March, peaking in December; fog is mostly a 9 PM\u201310 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","November","December"],"timeOfDay":"9 PM\u201310 AM","typicallyClearsBy":"11 AM"}},"links":{"page":"https://fogatlas.org/fog/city/sioux-falls-sd/","stationPages":["https://fogatlas.org/fog/kfsd/"],"verification":"https://fogatlas.org/fog/scorecard/"}}