San Antonio, Texas – Sweltering heat returns to Bexar County Thursday, with highs near 94°F, but all eyes are on this weekend’s growing thunderstorm chances.
According to the National Weather Service in Austin/San Antonio, a summer weather alert is in effect for the region as scattered thunderstorms could impact San Antonio after 1 p.m. Saturday. Storm activity may extend into Sunday and Monday, with gusty winds up to 20 mph and brief downpours potentially disrupting weekend travel, especially along Loop 410 and I-35 corridors.
High pressure remains dominant through Friday, keeping skies mostly sunny and temperatures locked in the mid-90s. Thursday and Friday will see highs of 94°F, with lows hovering in the mid-70s and southeast winds reaching 20 mph. Conditions remain dry through Friday night.
By Saturday, the pattern shifts. A 40% chance of showers and thunderstorms builds after 1 p.m., with temperatures peaking near 92°F. Saturday night brings a continued 30% chance of precipitation, including isolated storms after 1 a.m. Sunday. Residents with outdoor plans should monitor updates and prepare for changing conditions.
Storm chances persist into early next week, with Sunday and Monday each carrying a 20–40% chance of afternoon thunderstorms. While rainfall totals are expected to remain light, brief street flooding and lightning are possible in isolated pockets.
Plan accordingly for fluctuating conditions through the weekend. Another round of heat builds Tuesday with highs back to 96°F.
🔎 San Antonio Five-Day Weather Outlook (July 10–15)
- Thursday: Sunny, high 94°F. Winds S 5–10 mph, gusts up to 20 mph.
- Friday: Mostly sunny, high 94°F. Light evening clouds.
- Saturday: 40% chance of PM storms. High 92°F. Gusty SE winds.
- Sunday: 40% chance of PM storms. High 93°F.
- Monday: Partly sunny, 20% chance of storms. High 95°F.
