NBC News reported police in Schertz, a city northeast of San Antonio, said the body of Avram Adams, 18, was found in the vicinity of where he was last seen trying to cross swollen Cibolo Creek Saturday.
A 29-year-old woman died Saturday when her car got caught in floodwaters and she was swept away by the current. A 60-year-old woman died when she was trapped in her flooded car, the San Antonio Express-News reported.
The Weather Channel said San Antonio had received more than 12 inches of rain in the 24 hours that ended at noon EDT Saturday. The 24-hour record of 13.35 inches was set in October 1998.
Bexar, Wilson, Karnes, Live Oak, San Patricio and Nueces counties were under a flood warning through noon Sunday, the National Weather Service said. Flash-flood watches remained in effect for Kendall, Comal, Guadalupe and Atascosa counties.
Emergency response officials said they were monitoring communities downstream from San Antonio, where rivers and creeks were expected to swell from the deluge of water.
Dozens of people were evacuated from low-lying areas this weekend and scores were rescued from precarious perches when they got caught in fast-rising rivers and streams in the area.