San Antonio

San Antonio Braces for Sizzling Temperatures with Highs Nearing 99 Degrees

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Published on May 21, 2025
San Antonio Braces for Sizzling Temperatures with Highs Nearing 99 DegreesSource: Google Street View

San Antonio is gearing up for a sweltering week ahead, according to the latest weather forecast. With predictions of high temperatures inching into the upper 90s, locals will have to find ways to keep cool under the Texan sun. Today, for instance, is slated to be mostly sunny with the mercury set to rise near 96 degrees, while an east-southeast wind will blow at a gentle 5 to 10 mph pace. The National Weather Service has reported that tonight, the city will experience mostly cloudy skies with a low around 75, accompanied by a south-southeast wind flowing at a similar speed. As the week progresses, the heat is expected to intensify.

Tomorrow, San Antonians should prepare to experience what it truly means to face Texas heat. The forecast indicates conditions will not only be mostly sunny but also hot, with highs nearing 99 degrees. The heat index could easily reach a scorching 104 degrees. While the winds are predicted to remain light in the morning, residents can anticipate them to slowly increase to 5 to 10 mph in the afternoon, as reported by the National Weather Service. This heat spike will carry through to the weekend, with Friday and Saturday also seeing highs in the mid to upper 90s.

The situation seems to marginally improve as the week draws to a close, but not by much. Saturday night forecasts suggest partly cloudy skies with a low around 77 degrees, and winds continuing to blow from the south-southeast at 10 to 15 mph, with gusts potentially reaching up to 25 mph. Sunday also maintains the pattern of mostly sunny skies with an almost consistent high near 97 degrees, ahead of a night that introduces a 40 percent chance of showers and thunderstorms, which offers some respite from the relentless heat.

As residents look forward to the Memorial Day holiday, there is some cause for hopeful anticipation. A 40 percent chance of showers and thunderstorms might just be enough to slightly cool off the festivities. The daytime conditions are partly sunny with a high around a slightly more comfortable 90 degrees, while the evening could see the temperatures dip as low as 69 degrees. Continuing into Tuesday, the chance for showers and thunderstorms drops to 20 percent and the high is expected to be near 86 degrees, indicating a possible break from the previous days' extreme heat.