San Antonio, Texas – Rising heat will replace today’s rain threat in South-Central Texas, with temperatures pushing into the mid-90s by Friday and the potential for storms lingering into the weekend. Until then, a Flood Watch remains in effect through 7 p.m. Thursday, prompting concerns along major roadways, especially I-35 between Austin and San Antonio.
According to the National Weather Service in Austin/San Antonio, saturated soil from overnight storms could result in dangerous runoff, flooding creeks, low-lying roads, and urban intersections. Bastrop, Bexar, Caldwell, Comal, Guadalupe, Hays, Travis, and Wilson counties are all under watch. Drivers should avoid flooded roads and monitor alerts through the afternoon.
By Friday, the region shifts gears from flood risk to summer heat. Patchy morning fog will clear by mid-morning, leading to a high of 94°F in San Antonio, with heat index values reaching 107°F. Scattered thunderstorms are possible again late Friday and Saturday afternoon.
Father’s Day Sunday looks mostly sunny and hot, with highs again near 95°F. While the severe threat is low, pop-up afternoon storms remain possible through early next week.
Stay weather-aware and hydrate regularly if spending time outdoors this weekend. More advisories may follow if storms redevelop.
📅 Five-Day San Antonio Forecast (June 12–17):
- Thursday: Slight chance of storms, high 86°F – Flood Watch until 7 PM
- Friday: 20% chance of AM storms, high 94°F, heat index near 107°F
- Saturday: Slight PM storm chance, mostly sunny, high 95°F
- Sunday (Father’s Day): Mostly sunny, high 95°F – low storm chance after 1 PM
- Monday: Sunny and hot, high near 96°F
