San Antonio

San Antonio Sizzles as Temperatures Teeter on Triple Digits, NWS Advises Caution

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Published on August 14, 2025
San Antonio Sizzles as Temperatures Teeter on Triple Digits, NWS Advises CautionSource: Google Street View

San Antonians brace for a scorching week as temperatures soar to near triple digits, with the mercury expected to hover around 100 degrees today. The National Weather Service has issued a statement detailing the sizzling conditions, advising residents to stay hydrated and cool. According to their latest forecast, the high for today could climb even higher when factoring in heat index values, which can reach up to 105, with a calm south southeast wind bringing little relief.

As night falls, locals won't find much respite from the heat. Partly cloudy skies are expected, while low temperatures marginally dip to around 78 degrees. The light south southeast wind will persist, occasionally gusting up to 20 mph. Looking ahead to Friday, conditions remain unrelentingly sunny with another high near 98 degrees and heat index values peaking at 104. And while a 20 percent chance of showers and thunderstorms may offer a glimmer of hope late Friday night, the likelihood of a cooling downpour seems slim.

Into the weekend, the showers and thunderstorms become more probable with a 50 percent chance on Saturday, perhaps providing a brief hiatus from the incessant heat. The day is predicted to be partly sunny, with a high near a slightly more moderate 94 degrees. Winds remain consistent throughout, with southeast gusts that can reach 20 mph, before tapering off slightly to a gentle breeze in the evening, around 77 degrees, as detailed by the National Weather Service.

Residents can expect the beginning of the week to exhibit a repetitive pattern of relentless sunny skies and high temperatures. Sunday, once again, rises to near 98 degrees under mostly sunny conditions. Monday doesn’t stray from the script, projected as sunny and hot with a high near 99 degrees. That evening, the skies will mostly clear up, settling at a low of around 78. The forecast predicts a 20 percent chance of rain on Tuesday, where temperatures will soar to high near 99 degrees.

Wednesday’s forecast shows a slight change, with a 30% chance of showers and thunderstorms that could ease the heat. Still, it’s expected to stay mostly sunny with highs near 98 degrees.