San Antonio, Texas – A quick burst of isolated showers could dampen plans early Saturday in San Antonio, but Mother’s Day Sunday looks warm and clear. By Monday, temperatures will surge into the low 90s, marking an early push of summer heat across the region.
According to the National Weather Service, isolated rain showers are possible after 1 p.m. Saturday, with gusty northeast winds up to 20 mph. Rainfall chances remain low—just 20%—but slick patches on roadways like I-410 and U.S. 281 could briefly impact travel. By Saturday night, skies clear and winds ease.
Mother’s Day on Sunday will deliver classic Central Texas sunshine, with a high near 87°F and calm breezes. It’s a good day for outdoor plans—but stay hydrated. The summer-like heat builds quickly after the weekend, topping 92°F by Monday.
Humidity levels will climb slightly through midweek, and daily highs from Monday through Thursday will stay near or above 100°F in some neighborhoods. No rain is expected after Saturday, and winds will remain light, increasing heat index risks—especially for those working outdoors.
5-Day Forecast Preview for San Antonio
- Saturday: 81°F with isolated p.m. showers, breezy
- Sunday (Mother’s Day): Sunny and 87°F
- Monday: Sunny, high near 92°F
- Tuesday: Hot and sunny, high near 100°F
- Wednesday: Mostly sunny, high near 101°F
