After scattered thunderstorms brought pockets of heavy rain to parts of South Central Texas on Saturday, Gulf moisture is expected to bring several more days of rain chances beginning Monday.
The National Weather Service forecasts a 20% chance of showers and thunderstorms Monday afternoon in San Antonio. Rain chances increase to 50% Monday night, rising to 60% Tuesday night and Wednesday as rounds of showers and thunderstorms move across the region.
While San Antonio is generally expected to receive between one-half inch and 1 inch of rain through Thursday, locally higher amounts are possible in stronger thunderstorms.
The highest rainfall totals are expected west of San Antonio, including around Uvalde, Del Rio and Rocksprings, where the National Weather Service forecasts widespread totals of 2 to 6 inches between Monday and Thursday. Isolated areas could receive as much as 8 inches, increasing the potential for localized flooding.
The additional clouds and rain are also expected to bring cooler temperatures to the region. Highs should reach around 91 degrees Monday before settling into the mid- to upper 80s through the middle of the week.
No flood watches are currently in effect for the San Antonio area. Still, forecasters say periods of heavy rain could produce isolated flooding, particularly in low-lying and poor-drainage areas, through the middle of the week.
Showers and thunderstorms are likely at times Monday through Thursday. Widespread totals of 2-6" are possible. Isolated totals up to 8" are possible mainly over the Rio Grande Plains and southern Edwards Plateau. Never underestimate the power of water. Turn Around, Don't Drown. pic.twitter.com/cULmPsQqY2
— NWS Austin/San Antonio (@NWSSanAntonio) July 12, 2026