{"city":"Watertown","region":"US-SD","country":"US","slug":"watertown-sd","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KATY","name":"Watertown Regional Airport","subCat1HoursPerYear":82,"forecast":"verifying"}],"primaryStation":"KATY","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 6 hours of dense fog here."},"climatology":{"subCat1HoursPerYear":82,"fogSeasonPeakMonths":["January","December"],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, April, August, September, November, December, peaking in January; fog is mostly a 1 AM\u201310 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","August","September","November","December"],"timeOfDay":"1 AM\u201310 AM","typicallyClearsBy":"11 AM"}},"links":{"page":"https://fogatlas.org/fog/city/watertown-sd/","stationPages":["https://fogatlas.org/fog/katy/"],"verification":"https://fogatlas.org/fog/scorecard/"}}