San Antonio

San Antonio Weather Forecast: Sunny Days, Thunderstorm Risks, and Cool Evenings Ahead

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Published on October 23, 2025
San Antonio Weather Forecast: Sunny Days, Thunderstorm Risks, and Cool Evenings AheadSource: Google Street View

San Antonians can expect a range of weather patterns in the upcoming week, with shifts from partly sunny skies to potential thunderstorms, according to the latest forecast. Despite the largely pleasant conditions dominating today with a high near 90 degrees and south southeast winds at 5 to 10 mph, the weather is set to turn as we head into the night with increasing clouds and a low around 71 degrees, bearing gusts as high as 20 mph.

Friday is looking mostly cloudy with a slight chance of showers and thunderstorms, and a high lingering near 89 degrees. The southeast wind should stay consistent around 10 mph, gusting to 20 mph. Meanwhile, a stronger likelihood of showers and thunderstorms is predicted for Friday night, mainly between 1am and 4am, before possibly transitioning into more thunderstorms after 4am. With a 70% chance of precipitation, the overnight low is expected to stay around 69 degrees.

Heading into the weekend, showers and potential thunderstorms continue to be likely before 1pm on Saturday. Skies will then clear up to partly sunny with a high of about 83 degrees and a south wind around 10 mph. The chance of precipitation remains at 70% during the day. By Saturday night, the odds of showers and thunderstorms drop to 30% before 1am under partly cloudy skies and an anticipated low near 65 degrees.

Sunday ushers in a sunny day with a high around 86, as the wind shifts from north northwest to south throughout the day. The evening is expected to be mostly clear with a low around 66 degrees. As we start the new week, the forecast suggests mostly sunny skies on Monday with a high near 88 and a mostly clear night with lows around 66. Tuesday to Wednesday calls for more sun and high temperatures gradually descending from the mid-80s to 78 by midweek.

Residents should keep an eye on the skies and be prepared for the mercurial weather swings, particularly on Friday night through Saturday. For the most accurate and timely San Antonio weather updates, visit the National Weather Service website or check their latest weather predictions at NWS San Antonio.