{"icao":"KOSH","name":"Wittman Regional Airport","lat":43.9844,"lon":-88.557,"country":"US","tz":"America/Chicago","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":50,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["January","December"],"monthlyHours":[12,8,4,4,2,0,1,2,4,2,3,10],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, April, September, November, December, peaking in January; fog is mostly a 3 AM\u201310 AM phenomenon; typically thinning out by noon; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","September","November","December"],"timeOfDay":"3 AM\u201310 AM","typicallyClearsBy":"noon"}},"forecast":{"covered":true,"public":true,"cycle":"2026-09-04T13:00:00Z","peakPct":15,"peakAtLocal":"2026-09-05T05:00:00-05:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 15%. September typically brings about 4 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kosh/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KOSH","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KOSH.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}