{"city":"San Marcos","region":"US-TX","country":"US","slug":"san-marcos-tx","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"KHYI","name":"San Marcos Regional Airport","subCat1HoursPerYear":58,"forecast":"verifying"}],"primaryStation":"KHYI","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. dense fog (visibility under a mile) is rare here in August."},"climatology":{"subCat1HoursPerYear":58,"fogSeasonPeakMonths":["February","January"],"medianEventHours":1,"season":{"summary":"Fog season runs October through May, peaking in January; fog is mostly a 6 AM\u20138 AM phenomenon; typically thinning out by 10 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","May","October","November","December"],"timeOfDay":"6 AM\u20138 AM","typicallyClearsBy":"10 AM"}},"links":{"page":"https://fogatlas.org/fog/city/san-marcos-tx/","stationPages":["https://fogatlas.org/fog/khyi/"],"verification":"https://fogatlas.org/fog/scorecard/"}}