{"city":"Rapid City","region":"US-SD","country":"US","slug":"rapid-city-sd","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KRAP","name":"Rapid City Regional Airport","subCat1HoursPerYear":63,"forecast":"live forecast"},{"icao":"KRCA","name":"Ellsworth Air Force Base","subCat1HoursPerYear":102,"forecast":"verifying"}],"primaryStation":"KRAP","forecast":{"covered":true,"public":true,"cycle":"2026-08-16T00:00:00Z","peakPct":5,"peakAtLocal":"2026-08-16T06:00:00-06:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 5%. August typically brings about 3 hours of dense fog here."},"climatology":{"subCat1HoursPerYear":63,"fogSeasonPeakMonths":["March","January"],"medianEventHours":1,"season":{"summary":"Fog season runs July through May, 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","April","May","July","August","September","October","November","December"],"timeOfDay":"2 AM\u20139 AM","typicallyClearsBy":"noon"}},"links":{"page":"https://fogatlas.org/fog/city/rapid-city-sd/","stationPages":["https://fogatlas.org/fog/krap/","https://fogatlas.org/fog/krca/"],"verification":"https://fogatlas.org/fog/scorecard/"}}