{"city":"Yankton","region":"US-SD","country":"US","slug":"yankton-sd","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KYKN","name":"Chan Gurney Municipal Airport","subCat1HoursPerYear":57,"forecast":"live forecast"}],"primaryStation":"KYKN","forecast":{"covered":true,"public":true,"cycle":"2026-08-16T00:00:00Z","peakPct":8,"peakAtLocal":"2026-08-17T07:00:00-05:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 8%. August typically brings about 6 hours of dense fog here."},"climatology":{"subCat1HoursPerYear":57,"fogSeasonPeakMonths":["December","January"],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, July, August, September, November, December, peaking in December; fog is mostly a 3 AM\u20138 AM phenomenon; typically thinning out by 10 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","July","August","September","November","December"],"timeOfDay":"3 AM\u20138 AM","typicallyClearsBy":"10 AM"}},"links":{"page":"https://fogatlas.org/fog/city/yankton-sd/","stationPages":["https://fogatlas.org/fog/kykn/"],"verification":"https://fogatlas.org/fog/scorecard/"}}