San Antonio

San Antonio Braces for Fog, Showers, and Wide Temperature Swings

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Published on December 13, 2025
San Antonio Braces for Fog, Showers, and Wide Temperature SwingsSource: Unsplash/ Theo Lonic

San Antonio is expected to see variable weather in the coming days, with patchy dense fog and a chance of showers. The National Weather Service forecasts dense fog overnight, with cloudy skies, a low near 60 degrees, and light northeast winds.

On Saturday, the morning fog is expected to lift by 9 a.m., leaving cloudy skies that gradually clear to mostly sunny conditions by the afternoon, with a high near 77 degrees and light northeast winds. Saturday night brings a 20 percent chance of showers after 3 a.m., increasing cloud cover, and a low around 53 degrees, with light winds picking up gusts of up to 20 mph.

On Sunday, San Antonio can expect partly sunny skies with highs near 60 degrees and brisk north-northeast winds of 15 to 20 mph, gusting up to 30 mph. Sunday night will remain partly cloudy with temperatures dropping to around 40 degrees and continued gusty north-northeast winds.

The start of the week in San Antonio is likely to bring milder conditions. Monday will be partly sunny with a high near 58 degrees, turning mostly cloudy in the evening with a low around 46 degrees and lighter winds. Temperatures rise midweek, with Wednesday reaching highs near 75 degrees and Thursday peaking around 80 degrees. Friday is expected to remain fair, with a high near 76 degrees and clear skies.