San Antonio, Texas – A steamy Friday sets the stage for potential weather trouble in South-Central Texas this weekend, as thunderstorm chances rise Saturday night through Sunday. Outdoor events, including high school football, may be impacted by sudden downpours and lightning—especially in and around San Antonio.
According to the National Weather Service, after another scorcher Friday with highs near 100°F, scattered storms could roll in late Saturday. The risk increases Sunday with a 60% chance of rain and storms, primarily in the afternoon and evening hours. Flash flooding isn’t expected, but brief heavy rain and gusty winds could affect roadways like I-35 and U.S. Route 281.
Expect muggy conditions to linger, with humidity holding strong through the weekend. East-northeast winds between 5 and 10 mph will offer little relief. Anyone with travel or outdoor plans Sunday should monitor forecasts and have backup options in place. Power outages and delays can’t be ruled out, especially during peak storm activity Sunday afternoon.
As schools resume Monday, light rain may linger into the start of the workweek. While not a washout, Monday and Tuesday both carry a slight chance of showers and storms.
More updates are expected as storm timing becomes clearer. Stay weather-aware and avoid outdoor activities during periods of lightning or heavy rain.
Five Day Forecast for San Antonio, TX
- Friday: Mostly sunny and hot, high near 100°F.
- Saturday: 30% chance of showers/storms by evening, high near 96°F.
- Sunday: 60% chance of storms, especially after 1 p.m., high near 91°F.
- Monday: 50% chance of showers, mostly sunny, high near 87°F.
- Tuesday: 20% storm chance, highs in the low 90s, humid.
