San Antonio, Texas – Afternoon storms are expected to flare across South-Central Texas today, mainly south of I-10 and along the U.S. 90 corridor, bringing brief heavy downpours and lightning risks. Highs will push into the mid to upper 90s, keeping heat index values near 100 degrees.
According to the National Weather Service in Austin/San Antonio, scattered storm activity will remain possible through Wednesday night, before a brief drying trend sets in Thursday. By Friday, another round of showers and storms is expected, with rain chances holding steady through early next week.
The most likely areas to see rain today include San Antonio, New Braunfels, Cuero, and Gonzales, where isolated storms may disrupt late-day commutes. Residents in Del Rio and Uvalde could also see scattered activity. Drivers are urged to watch for slick roads and ponding during downpours, especially during evening travel hours.
Thursday is expected to be the driest day this week, though temperatures will climb into the upper 90s to near 100. Relief comes by Sunday and Monday as highs drop slightly into the low 90s with more widespread rain chances.
More advisories could be issued if storms become stronger than expected.
Five Day Forecast for San Antonio, Texas
- Wednesday: High 95°F, scattered storms, overnight low 77°F
- Thursday: Sunny, high 98°F, low 78°F
- Friday: High near 100°F, slight chance of storms late, low 78°F
- Saturday: High 97°F, storm chances after 1 p.m., low 77°F
- Sunday (Labor Day Weekend): High 90°F, scattered storms, low 74°F
