San Antonio is starting Wednesday under cloudy skies near 80 degrees, but the brief morning gray gives way to another punishing afternoon. Temperatures are expected to climb to 99 degrees, with the heat index reaching as high as 107.
The National Weather Service’s Austin/San Antonio office forecasts mostly sunny conditions by late morning, with southeast winds of 5 to 10 mph. Rain chances remain minimal at 0%, so umbrellas are unlikely to be useful today, while shade and water will be much more valuable, according to the National Weather Service.
Thursday Brings Slight Storm Chances
Thursday will stay hot, with a high near 98 and heat index values possibly reaching 109. A slight chance of showers and thunderstorms is expected between 1 and 4 p.m., with a 20% chance of precipitation.
Thursday could bring isolated to scattered rain chances. The low will hover around 78 degrees, and the heat index could reach 100 degrees or higher by 8 p.m., making it a warm night for anyone without reliable cooling.
Hot Weather Hangs On Through The Weekend
Friday and Saturday will be mostly sunny, with highs near 97 degrees both days. Sunday could be even warmer, reaching about 97 degrees, while overnight lows remain in the mid-70s.
Confidence is low regarding next week’s rainfall, with an upper-level disturbance possible early next week. No watches, warnings or advisories are currently posted, but residents should limit strenuous outdoor activity during the hottest part of the day and check on anyone vulnerable to heat.
