{"icao":"KLWT","name":"Lewistown Municipal Airport","lat":47.0484,"lon":-109.4661,"country":"US","tz":"America/Denver","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":31,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["April","March"],"monthlyHours":[4,2,6,6,3,1,0,0,1,2,3,2],"medianEventHours":1,"season":{"summary":"Fog season runs October through May, peaking in March; fog is mostly a 7 AM\u201311 AM phenomenon; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","May","October","November","December"],"timeOfDay":"7 AM\u201311 AM","typicallyClearsBy":null}},"forecast":{"covered":true,"public":false,"cycle":"2026-09-04T13:00:00Z","guidanceSignal":false,"wording":"No fog signal in NWS guidance for the next 48 hours. September typically brings about 1 hour of dense fog here."},"links":{"page":"https://fogatlas.org/fog/klwt/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KLWT","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KLWT.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}