{"city":"Duluth","region":"US-MN","country":"US","slug":"duluth-mn","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KDLH","name":"Duluth International Airport","subCat1HoursPerYear":178,"forecast":"verifying"}],"primaryStation":"KDLH","forecast":{"covered":true,"public":false,"cycle":"2026-08-16T00:00:00Z","guidanceSignal":true,"wording":"NWS guidance shows a fog signal here in the next 48 hours. This station's calibrated percentages publish after live verification clears the accuracy bar. August typically brings about 16 hours of dense fog here."},"climatology":{"subCat1HoursPerYear":178,"fogSeasonPeakMonths":["September","December"],"medianEventHours":2,"season":{"summary":"Fog season runs August through June, peaking in September; fog is mostly a midnight\u201310 AM phenomenon; typically thinning out by 3 PM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","April","May","June","August","September","October","November","December"],"timeOfDay":"midnight\u201310 AM","typicallyClearsBy":"3 PM"}},"links":{"page":"https://fogatlas.org/fog/city/duluth-mn/","stationPages":["https://fogatlas.org/fog/kdlh/"],"verification":"https://fogatlas.org/fog/scorecard/"}}