Weekend Breakdown (Copyright KSAT-12 2026 - All Rights Reserved)
FORECAST HIGHLIGHTS
SATURDAY STORMS: Best chance from 5pm to 10pm
SEVERE? FLOODING?: Not likely. Gusty winds can’t be ruled out. Average rainfall less than 0.50″, isolated 1″+ possible
SUNDAY: Rain pushes south, AM lingering showers
FORECAST
TODAY
Continued hot & humid. Highs near 100°. Heat index 100-105 between 1pm and 7pm.
SATURDAY
The first half of the day will see mostly sunny skies and hot conditions. A weak front will begin to stir up clouds and eventually showers and storms near 4pm across the Hill Country. These storms will shift south towards San Antonio roughly between 5pm and 10pm. Severe weather is unlikely, but we can’t rule out gusty winds with any of the stronger storms. Rainfall will generally be less than a half of an inch. An isolated spot or two could see up to an inch. Isolated, brief street flooding is possible.
Futurecast for Saturday (8/1) at 5pm. (Copyright KSAT-12 2026 - All Rights Reserved)
Our advice: Keep your Saturday evening plans, but be prepared to duck inside for half an hour or so, should a storm approach your area. Rain chances for San Antonio sit at 40%
Weekend Need-To-Know (Copyright KSAT-12 2026 - All Rights Reserved)
SUNDAY
A few lingering showers are possible early on Sunday. However, rain should push south, leaving us with clearing skies. Humidity will be slightly lower, while temperatures will return to the upper-90s.
KSAT Weather Authority's Extended Forecast. (Copyright 2026 by KSAT - All rights reserved.)
Daily Forecast
KSAT meteorologists keep you on top of the ever-changing South Texas weather.
Sarah Spivey is a San Antonio native who grew up watching KSAT. She has been a proud member of the KSAT Weather Authority Team since 2017.
Sarah is a Clark High School and Texas A&M University graduate. She previously worked at KTEN News.
When Sarah is not busy forecasting, she enjoys hanging out with her husband and cat, and playing music.
Justin Horne is a meteorologist and reporter for KSAT 12 News. When severe weather rolls through, Justin will hop in the KSAT 12 Storm Chaser to safely bring you the latest weather conditions from across South Texas. On top of delivering an accurate forecast, Justin often reports on one of his favorite topics: Texas history.