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Record cold, chance of light wintry mix

Bitterly cold with record cold likely overnight

Warmer by Sunday and especially next week in San Antonio. (Copyright 2024 by KSAT - All rights reserved.)

FORECAST HIGHLIGHTS

  • RECORD COLD THURSDAY AM: Lower 20s likely in SA
  • CHANCE RAIN & LIGHT WINTRY MIX: Cold, spotty showers & light mix possible Saturday
  • WARMER BY SUNDAY: Mid 60s

FORECAST

🌡RECORD COLD TONIGHT/EARLY THURSDAY🌡

The coldest night of the year is on the way with a low of 22° expected in San Antonio by sunrise tomorrow morning, but outside of the city, especially across the Hill Country, teens are likely. The record low for Thursday in San Antonio is 26°, set during the ‘big freeze’ of 2021, but that’s likely to fall.

🧥COLD UNTIL SUNDAY🧥

Bottom line, plan for jacket weather all day, every day until Sunday. Until then, most mornings will be below freezing, and afternoons will range from the mid 30s to lower 40s. Conditions change by Sunday afternoon when temperatures should climb into the mid 60s with sunshine, then next week we’re expecting upper 70s.

☔RAIN & WINTRY MIX CHANCES FRIDAY INTO SATURDAY☔

Increasing moisture and a few other factors will lead to thick clouds Friday and Saturday, and a few sprinkles are possible especially Friday night into Saturday morning. Temperatures could be cold enough for a few sleet/ice pellets on Friday, but it would *not* get in the way of travel or typical daily activities - more of a “gee whiz” factor. By Saturday morning, a light glaze of ice is possible on some elevated surfaces such as street signs, parked cars, decks, etc., but travel disruptions are unlikely at this time. Overall precipitation is expected to be very light with minimal accumulations, but check back for updates as the weekend nears.

A few sleet pellets possible across South-Central Texas Friday and Saturday. (Copyright 2024 by KSAT - All rights reserved.)

☀BIG WARM-UP NEXT WEEK☀

In true Texas form, we’ll be near 80° by Tuesday!

San Antonio extended forecast as of 2/19/25. (Copyright 2024 by KSAT - All rights reserved.)

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About the Authors
Justin Horne headshot

Justin Horne is a meteorologist and reporter for KSAT 12 News. When severe weather rolls through, Justin will hop in the KSAT 12 Storm Chaser to safely bring you the latest weather conditions from across South Texas. On top of delivering an accurate forecast, Justin often reports on one of his favorite topics: Texas history.

Shelby Ebertowski headshot

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.