{"city":"Altoona","region":"US-PA","country":"US","slug":"altoona-pa","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KAOO","name":"Altoona Blair County Airport","subCat1HoursPerYear":87,"forecast":"live forecast"}],"primaryStation":"KAOO","forecast":{"covered":true,"public":true,"cycle":"2026-08-16T00:00:00Z","peakPct":9,"peakAtLocal":"2026-08-17T02:00:00-04:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 9%. August typically brings about 10 hours of dense fog here."},"climatology":{"subCat1HoursPerYear":87,"fogSeasonPeakMonths":["September","January"],"medianEventHours":2,"season":{"summary":"Fog season is year-round, peaking in January; fog is mostly a 2 AM\u20138 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","April","May","June","July","August","September","October","November","December"],"timeOfDay":"2 AM\u20138 AM","typicallyClearsBy":"9 AM"}},"links":{"page":"https://fogatlas.org/fog/city/altoona-pa/","stationPages":["https://fogatlas.org/fog/kaoo/"],"verification":"https://fogatlas.org/fog/scorecard/"}}