A few dry days until random afternoon downpours return. (Copyright 2024 by KSAT - All rights reserved.)
FORECAST HIGHLIGHTS
DRY: Upper-level dry high for a few more days
WEEKEND: Isolated afternoon downpours
HUMIDITY: No relief, heat index values will reach near 100° in the afternoons
FORECAST
TONIGHT
A few isolated downpours developed this afternoon, but that action is done and the rest of the night will be quiet. Low gray clouds will develop and stick around through sunrise, but only an insignificant sprinkle is possible.
REST OF WORK WEEK
A ridge of high pressure will keep things dry until stray showers develop Friday afternoon. If you have to be outside in the afternoons, keep in mind it will feel hotter than the actual temperature because of the humidity. It’s a good idea to stay hydrated and take breaks if you’re spending time outdoors.
The humidity is the big story this week increasing heat index values (Copyright KSAT-12 2026 - All Rights Reserved)
WEEKEND
This weekend we’ll see a surge of deep moisture, which will bring the likelihood of random afternoon downpours. This deep moisture should also interact with a weak cold front early next week, boosting rain chances. Stay tuned for updates!
Tropical moisture will get drawn into South Texas by the weekend (Copyright KSAT-12 2026 - All Rights Reserved)
Daily Forecast
KSAT meteorologists keep you on top of the ever-changing South Texas weather.
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.
Shelby Ebertowski joined KSAT 12 News in January 2025. She came to San Antonio from Fargo, North Dakota via the University of North Dakota, where she learned the ropes as a weekend forecaster over two years at KVLY. Her love of weather love began after experiencing Hurricane Harvey in 2017.