San Antonio, Texas – Dangerous heat continues across South-Central Texas this week, with daytime highs near 100 degrees and heat index values climbing as high as 104. The National Weather Service warns residents to prepare for both triple-digit heat and scattered thunderstorms developing midweek.
According to the National Weather Service in Austin-San Antonio, Wednesday brings sunshine early before scattered storms roll in by the evening. Rain chances continue into Thursday and Friday, with the strongest storms possible in the late afternoon and evening hours. Gusty winds, lightning, and brief downpours could impact travel across Bexar County and surrounding areas.
Thursday is expected to be one of the hottest days, with highs near 98 and a heat index around 104. Drivers should be alert for slick roads during afternoon storms, especially along I-35, Loop 410, and US-281. CPS Energy is also advising residents to conserve power during peak heat hours between 2 and 7 p.m.
The weekend trend looks slightly drier, but the heat will remain, with highs staying in the mid to upper 90s. Hydration and limited outdoor activity are advised. Additional storm chances return early next week.
Five Day Forecast for San Antonio, TX
- Wednesday: High 99, heat index up to 104. Evening storms possible.
- Thursday: High 98, hot and humid with scattered storms.
- Friday: High 95, afternoon and evening storms possible.
- Saturday: High 96, mostly sunny with slight storm chance late.
- Sunday: High 97, mostly clear and hot.
