{"city":"Murphysboro","region":"US-IL","country":"US","slug":"murphysboro-il","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KMDH","name":"Southern Illinois Airport","subCat1HoursPerYear":64,"forecast":"verifying"}],"primaryStation":"KMDH","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 10 hours of dense fog here."},"climatology":{"subCat1HoursPerYear":64,"fogSeasonPeakMonths":["September","August"],"medianEventHours":1,"season":{"summary":"Fog season is January, April, July, August, September, October, November, December, peaking in September; fog is mostly a 1 AM\u20136 AM phenomenon; typically thinning out by 8 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","April","July","August","September","October","November","December"],"timeOfDay":"1 AM\u20136 AM","typicallyClearsBy":"8 AM"}},"links":{"page":"https://fogatlas.org/fog/city/murphysboro-il/","stationPages":["https://fogatlas.org/fog/kmdh/"],"verification":"https://fogatlas.org/fog/scorecard/"}}