Flooding risk high east of San Antonio, but strong storms are still possible for the Alamo City

Flooding risk high east of San Antonio, but strong storms are still possible for the Alamo City


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FORECAST HIGHLIGHTS

Sunday has began damp, and as the day goes on, there’s a likelihood for storms. While not for everybody, there’s a rising concern for flooding, particularly east of San Antonio. Here’s what you have to know:

  • THIS AFTERNOON IN SAN ANTONIO: Additional storms possible, but once more — not assured for everybody (40% to 60%).

    • WATCHING FOR: Hail, gusty winds

    • RAINFALL: Most, lower than 0.25″. Some, greater than 1″

  • THIS AFTERNOON EAST OF SAN ANTONIO: Flooding concern.

Highest risk for flooding at the moment is east of San Antonio, alongside the Guadalupe and Colorado Rivers (Copyright 2026 by KSAT – All rights reserved.)

FORECAST

SAN ANTONIO

Today’s Forecast (Copyright 2026 by KSAT – All rights reserved.)

We’ll preserve a 40% to 60% likelihood for storms by the afternoon and night, particularly if clouds break sufficient for extra heating. Any storms that redevelop might once more produce hail, damaging winds, and heavy rainfall. BUT AGAIN, NOT A GUARANTEE FOR STORMS IN YOUR BACKYARD. Rather, you must keep climate conscious you probably have any Sunday afternoon plans open air.

EAST OF SAN ANTONIO

Sunday’s Potential Rainfall will function a WIDE RANGE. Wherever the 4+” bullseyes set up, flooding will be possible. (Copyright 2026 by KSAT – All rights reserved.)

Take a look at the wide range of rainfall potential for areas east of San Antonio! Somewhere near the Guadalupe or Colorado Rivers, and along I-35 and I-10 there could be pockets of flooding rains Sunday afternoon and evening.

If you find yourself in a FLASH FLOOD WARNING and come across rushing water over roadways, please remember: TURN AROUND, DON’T DROWN.

NEXT WEEK

Much less active next week, but we do have a chance for a storm or two Wednesdays. Then, quiet and near 90° as Fiesta begins. For the first weekend of Fiesta, we’ll have a small chance for rain Saturday as a cold front moves through, making for a cooler, pleasant Sunday.

The newest forecast from Your Weather Authority (Copyright 2026 by KSAT – All rights reserved.)

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