San Antonio, Texas – Scattered thunderstorms and stifling heat are expected to hit San Antonio by early Sunday afternoon, raising safety concerns for drivers and outdoor plans.
According to the National Weather Service in Austin/San Antonio, there’s a 30% chance of showers and thunderstorms after 1 p.m. Sunday, with highs near 95°F and heat index values approaching 100°F. South-southeast winds of 5 to 10 mph could gust as high as 20 mph. Localized storms may develop quickly, especially along high-traffic corridors like I-35 and I-10, creating sudden slick spots or low visibility.
The storm threat eases after sunset, but clouds and mild humidity stick around. Monday brings more of the same: sun and a slight chance of afternoon storms with another high near 95°F. San Antonians should monitor the skies and stay hydrated, especially during peak heat hours between 2–5 p.m. It’s advisable to delay non-essential travel and keep emergency weather alerts enabled.
Looking further ahead, the weather stabilizes. Tuesday through Thursday will be hot, mostly dry, and partly sunny — with highs pushing into the upper 90s by midweek. While no widespread storms are expected, continued south-southeast winds could keep heat indices elevated.
Five-Day Forecast for San Antonio:
- Sunday (July 13): High 95°F — Thunderstorms possible after 1 p.m.; heat index near 100°F
- Monday: High 95°F — Slight chance of storms in the afternoon
- Tuesday: High 97°F — Partly sunny, breezy, and dry
- Wednesday: High 97°F — Mostly sunny, continued heat
- Thursday: High 98°F — Sunny and hot with a low around 75°F
⚠️ Stay weather-aware and limit outdoor activity during the hottest hours. Updates will follow if conditions worsen.
