San Antonio started Wednesday under mostly cloudy skies and muggy air, but the clouds will give way to a mostly sunny afternoon near 98 degrees. The heat index could reach 105, making the afternoon feel hotter than the thermometer suggests.
Temperatures will stay nearly as high Thursday, with a mostly sunny high near 97 and heat-index values up to 104. Rain chances remain low in the city, although isolated showers and storms are possible across parts of the Hill Country and Coastal Plains, according to the National Weather Service.
The Weekend Looks Even Hotter
Friday is forecast to reach 99 degrees under sunny skies, followed by a high near 100 Saturday. Sunday through Tuesday should remain mostly sunny and close to 99 degrees, while overnight lows hover in the upper 70s and offer only limited relief after sunset.
The updated outlook extends San Antonio’s run of near-triple-digit afternoons, building on an earlier Hoodline forecast that tracked the week’s persistent heat. Winds will generally blow from the south or southeast at 5 to 15 mph, with weekend gusts occasionally reaching 20 to 25 mph.
Rain Takes A Back Seat To The Heat
Rain chances stay in the single digits through the weekend and early next week, with the best odds generally east of the city. Any shower or thunderstorm that develops could bring a brief heavy downpour, but widespread rain is not expected in San Antonio.
Plan Around The Afternoon Heat
No watches, warnings or advisories are posted for the San Antonio area Wednesday, but the National Weather Service says temperatures and heat-index values could approach Heat Advisory levels this weekend, especially along and east of Interstate 35. People spending time outdoors should shift strenuous activity toward the morning or evening, drink water regularly, take breaks in shade or air conditioning, and check on children, older adults, outdoor workers and pets.
