Bring pets and plants inside tonight!
A hard freeze is possible Sunday morning for many (Copyright KSAT-12 2026 – All Rights Reserved)FORECAST HIGHLIGHTS
FREEZE WARNING: All of us will see freezing temperatures Sunday morning
MLK JR. DAY: Pleasant and cool
RAIN RETURNS: Tuesday night and Wednesday
FORECAST
SUNDAY MORNING
A hard freeze is expected across San Antonio Sunday morning. Several hours of below freezing conditions are possible, especially outside the downtown area. A Freeze Warning is in effect Sunday morning as low temperatures fall into the mid 20s.
Sunday Morning Temps (Copyright KSAT-12 2026 – All Rights Reserved)
These cold temperatures will hit in the early hours Sunday, and the freeze could last as long as five to six hours in some spots.
A hard freeze is possible Sunday morning for many (Copyright KSAT-12 2026 – All Rights Reserved)
MLK JR. DAY
Bundle up if you’re heading out for the march in the morning, as we start in the mid 30s. Sunny skies will bring highs into the mid 60s during the afternoon.
MLK Day Planner (Copyright KSAT-12 2026 – All Rights Reserved)
THIS WEEK
A major weather shift arrives Tuesday and Wednesday bringing moisture from the Gulf. Rain chances increase Tuesday night into Wednesday. Keep your umbrella handy as some areas could see heavy rain midweek.
7 Day Planner (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 AuthorsShelby Ebertowski headshotShelby 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.
Elliot Wilson headshotElliot Wilson
Elliot Wilson is a Weather Authority Meteorologist at KSAT. He has been passionate about the weather since he was a kid. His career has taken him from the Midwest to the Plains and to the South. He’s excited to be back in the Lone Star State, and is happy to be near the ocean!
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