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Spotty rain for San Antonio, flooding risk south & east

Heaviest rain tonight and tomorrow will be south and east of San Antonio

WATCH LIVE RADAR IN VIDEO ABOVE

FORECAST HIGHLIGHTS

  • REST OF TODAY: Cloudy, with times of light to moderate through sunset
  • TONIGHT: Fairly quiet in San Antonio, flooding possible SOUTH and EAST of San Antonio
  • TOMORROW: A few morning downpours for San Antonio, flooding risk continues SOUTH and East of San Antonio
  • RAIN CLEARS: Late Tuesday
  • SOME RAIN RETURNS: Friday

FORECAST

REST OF THE DAY

Rainfall (so far) Monday morning (Copyright 2026 by KSAT - All rights reserved.)

The Flash Flood Warning from this morning has expired, but over 6+“ of rain has fallen, so creeks and streams will remain swollen. Use caution near low-water crossings.

A few, stray showers are possible overnight, but the most numerous downpours are likely to be well south and east of San Antonio.

Additional rain will be focused south and east of San Antonio where 6"+ could fall. (Copyright 2024 by KSAT - All rights reserved.)

MONDAY NIGHT THROUGH WEDNESDAY

A low pressure system will move along the Texas Coast. While it should stay fairly quiet in San Antonio and the Hill Country, very heavy rain is possible south and east of San Antonio and especially near the Rio Grande Valley and along the Texas Coast.

This entire region is under a FLOOD WATCH, as pockets of 10+" of rain are possible.

As for San Antonio, we may have some lingering rain and clouds Tuesday morning.

THE REST OF THE WEEK

It’ll be hot Thursday, while rain makes a return to the forecast on Friday and into the weekend.

Sunny and hot Thursday with heat index values around 105. (Copyright 2024 by KSAT - All rights reserved.)

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