Weather
Texas Weather: Labor Day Weekend Heat Alert at 97° Near I-35 in San Antonio
San Antonio faces extreme heat this Labor Day weekend with temperatures hitting 97 degrees. Stay hydrated and plan for traffic delays along I 35 and I 10.
By Cameron Hayes · 2026-09-03T09:02:10.011Z
San Antonio, TX — Texas travelers should prepare for persistent heat as they hit the roads for the Labor Day holiday. With temperatures climbing toward the triple digits throughout the weekend, residents and visitors alike will need to stay hydrated while navigating holiday traffic.
Saturday marks the official start of the Labor Day Weekend festivities with mostly sunny skies and a high near 97 degrees. The gentle southeast breeze will do little to mitigate the intensity of the sun, so those planning outdoor cookouts or park visits should seek shade during the mid afternoon peak. Traffic on major arteries like I 35 and I 10 is expected to be heavy, and the relentless heat may test the endurance of older vehicles.
By Sunday, the region remains trapped in a pattern of extreme warmth. While skies will be sunny for the majority of the day, there is a slight 20 percent chance of isolated showers and thunderstorms developing after 1 p.m. If you are heading to local parades or outdoor gatherings, it is wise to keep an eye on the horizon for rapidly building clouds. Any precipitation will be brief, but it could provide a momentary, albeit muggy, reprieve from the 97 degree heat.
The holiday Monday will largely mirror the weekend conditions. Another high of 97 degrees is on the table, with the same potential for late afternoon storms drifting across the area. If your travel plans include a return trip on Monday evening, remain alert for slick spots if a stray thunderstorm passes through your route. Travelers are encouraged to check local traffic updates before departing, as holiday volume often leads to unexpected delays even under clear skies.
Planning a trip or backyard gathering this holiday? Tell us how you are staying cool this Labor Day Weekend.
Five Day Forecast:
Thursday: Mostly Sunny, 101/78 Friday: Mostly Sunny, 98/76 Saturday: Mostly Sunny, 97/77 Sunday: Sunny, 97/77 Monday: Sunny, 97/77 Have something happening in your community? Hit the red Post/Submit button above to share events, classifieds, stories and local updates with Country Herald. SUPPORT LOCAL INDEPENDENT NEWS! Have a tip? Message us!