Keep the umbrellas on standby throughout Fiesta

River Parade forecast calls for light showers and brisk weather

WATCH LIVE RADAR ABOVE

FORECAST HIGHLIGHTS

• TONIGHT: Lingering T-showers, no severe weather

• SUNDAY/MONDAY: Mostly cloudy & cool, rounds of light rain

• REST OF NEXT WEEK: Gradually warming

FORECAST

TONIGHT

We are still watching a line of showers and thunderstorms move in from the west. Most of these will be non severe and will provide a heavy downpour and pea sized hail. Overnight these will continue to gradually weaken, clearing out for most by morning.

SUNDAY

Most of the rain Sunday will stay well south of San Antonio. There will be some peeks of sun, and temps will stay cool — in the 60s. Clouds will thicken Sunday night, with a few sprinkles possible.

Cooler & damp for Fiesta plans on Sunday (Copyright KSAT-12 2026 – All Rights Reserved)

MONDAY

An upper-level disturbance will bring another round of showers. While the rain won’t be heavy, off and on showers are possible throughout the day. This will keep temperatures cool, with highs struggling to get out of the 50s. Showers may try to wind down a bit in time for the Texas Cavaliers River Parade, but plan for cool & damp conditions.

The River Parade is looking damp and cool (Copyright 2026 by KSAT – All rights reserved.)

EXTENDED FORECAST

From Tuesday on, it’ll gradually warm. We’ll be monitoring a small storm chance for Battle of Flowers.

Extended Forecast (Copyright KSAT-12 2026 – All Rights Reserved)Daily Forecast

KSAT meteorologists keep you on top of the ever-changing South Texas weather.

QUICK WEATHER LINKS

Copyright 2026 by KSAT – All rights reserved.

About the Authors

• Sarah Spivey headshot
  

  Sarah Spivey

  Sarah Spivey is a San Antonio native who grew up watching KSAT. She has been a proud member of the KSAT Weather Authority Team since 2017.

  Sarah is a Clark High School and Texas A&M University graduate. She previously worked at KTEN News.

  When Sarah is not busy forecasting, she enjoys hanging out with her husband and cat, and playing music.

• Shelby Ebertowski headshot
  

  Shelby Ebertowski

  Shelby Ebertowski joined KSAT 12 News in January 2025. She came to San Antonio from Fargo, North Dakota via the University of North Dakota, where she learned the ropes as a weekend forecaster over two years at KVLY. Her love of weather love began after experiencing Hurricane Harvey in 2017.

How to score free breakfast items after each Spurs win this postseason

▶ 0:25

How to score free breakfast items after each Spurs win this postseason

WEDNESDAY: KSAT speaks exclusively with Phyllis Ochoa, the woman behind the viral San Antonio song

▶ 0:28

WEDNESDAY: KSAT speaks exclusively with Phyllis Ochoa, the woman behind the viral San Antonio song

WATCH: Video captures 2 attempting to steal truck, pull gun on owner at Southeast Side H-E-B

▶ 6:05

WATCH: Video captures 2 attempting to steal truck, pull gun on owner at Southeast Side H-E-B

Community Upset Over New Braunfels Billboard

▶ 1:29

Community Upset Over New Braunfels Billboard

San Antonio influencer encourages younger generations to volunteer for Fiesta traditions

▶ 1:45

San Antonio influencer encourages younger generations to volunteer for Fiesta traditions

Survey: Social Pressure Driving Overspending

▶ 1:22

Survey: Social Pressure Driving Overspending

Saturday Cool-Down, Monday Showers for River Parade

▶ 1:06

Saturday Cool-Down, Monday Showers for River Parade

The Evolution of the Fiesta Medal

▶ 0:37

The Evolution of the Fiesta Medal

Behind the Scenes look at Fiesta Fiesta production

▶ 1:22

Behind the Scenes look at Fiesta Fiesta production

A Taste of New Orleans: KSAT’s Sarah Acosta gets a sneak peek at beignets, boudin balls and more

▶ 1:41

A Taste of New Orleans: KSAT’s Sarah Acosta gets a sneak peek at beignets, boudin balls and more

How to repurpose or upcycle your old and new Fiesta medals

▶ 0:44

How to repurpose or upcycle your old and new Fiesta medals

Spurs favored by 10.5 vs. Blazers in Game 1 at Frost Bank Center

▶ 1:41

Spurs favored by 10.5 vs. Blazers in Game 1 at Frost Bank Center

Teacher shot at Hill Country College Prep released from hospital

▶ 0:24

Teacher shot at Hill Country College Prep released from hospital

Hearing centers on negligence claims after Camp Mystic flooding

▶ 0:42

Hearing centers on negligence claims after Camp Mystic flooding

Fiesta Forecast Update

▶ 1:11

Fiesta Forecast Update

How much caffeine is too much for teens? San Antonio cardiologist shares warning signs

▶ 0:36

How much caffeine is too much for teens? San Antonio cardiologist shares warning signs

Cardboard Kids Pop Up Across San Antonio with a Powerful Message

▶ 1:06

Cardboard Kids Pop Up Across San Antonio with a Powerful Message

Waymo vs. Humans: An Expert Weighs In on Safety

▶ 1:53

Waymo vs. Humans: An Expert Weighs In on Safety

Rep. Tony Gonzales resigns amid sexual misconduct allegations

▶ 1:45

Rep. Tony Gonzales resigns amid sexual misconduct allegations

Local pastor accused of sexual abuse

▶ 0:55

Local pastor accused of sexual abuse

How rising gas prices are impacting a San Antonio bakery run by mother, daughter

▶ 0:41

How rising gas prices are impacting a San Antonio bakery run by mother, daughter

WATCH: Motorcycle in flames as two people injured after crash near downtown

▶ 0:12

WATCH: Motorcycle in flames as two people injured after crash near downtown

Severe Weather Possible Late Saturday, Again Sunday Evening

▶ 0:47

Severe Weather Possible Late Saturday, Again Sunday Evening

A New Beginning: Comal County Crisis Center Prepares to Welcome Clients

▶ 0:41

A New Beginning: Comal County Crisis Center Prepares to Welcome Clients

Could you ditch your car? KSAT’s Sarah Acosta took a VIA bus to work to find out

▶ 2:34

Could you ditch your car? KSAT’s Sarah Acosta took a VIA bus to work to find outPrevious photoNext photo