San Antonio is waking up to low clouds Sunday morning, with possible MVFR conditions along the I-35 corridor, but the day will quickly turn hot and breezy, with temperatures climbing toward 92°F. The warmth is only the opening act: highs in the low to mid-90s are expected through Wednesday before rain chances increase and a cooler weekend arrives.
Sunday Brings Sun, Heat And Gusty Winds
The National Weather Service’s Austin/San Antonio office expects mostly sunny skies Sunday, with southeast winds of 10 to 15 mph and gusts up to 25 to 30 mph. Rain is unlikely, with a 0% chance, making the afternoon favorable for outdoor plans if you can handle a little late-season summer heat.
Sunday night stays mild and partly cloudy, with a low near 73°F. Winds are expected to subside from late evening into the overnight, so lighter outdoor gear may not be enough to make the evening feel cool.
Monday And Tuesday Could Feel Like Summer Again
Monday’s high is forecast near 93°F, with heat index values potentially reaching 100°F and a slight chance of showers or thunderstorms after 1 p.m. Tuesday looks even warmer, with a high near 94°F under partly sunny skies and only a small rain chance.
Wednesday remains hot near 93°F, with another slight chance of afternoon showers and thunderstorms. The forecast discussion says heat index values could reach 100°F to 108°F early in the week, so people spending extended time outside should plan for shade, water and breaks from the heat.
Rain Chances Rise Before The Weekend Cooldown
Thursday brings a better chance for showers and thunderstorms, with a high near 90°F and a 30% precipitation chance. A cold front is expected to move through late in the week, although its exact timing and strength remain uncertain.
Friday looks notably cooler, with a high near 82°F, a low near 66°F and a chance of rain showers. Saturday should be mostly sunny after a small early rain chance, with a high near 76°F and a much cooler low around 58°F.
No watches, warnings or advisories are currently posted for the San Antonio area. The latest local forecast is available from the National Weather Service.
