If you’ve been enjoying the recent warm and sunny weather, brace yourself—San Antonio is about to experience one of the most extreme temperature swings of the season. After a beautiful weekend in the 70s, two back-to-back cold fronts will send temperatures plummeting by more than 40 degrees early next week, bringing freezing conditions and even the chance for a wintry mix.
The National Weather Service warns that this drastic temperature shift could catch many people off guard, so it’s important to prepare for both warm and frigid weather within just a few days.
Saturday, February 15: Warm and Breezy—Enjoy It While It Lasts
Saturday will be a beautiful day for outdoor activities, with warm temperatures and plenty of sunshine.
- Morning: Some areas may start with patchy fog, but it will quickly clear.
- Afternoon: Expect highs near 74°F (24°C), making it feel more like spring than February.
- Evening: A cold front moves in late at night, bringing cooler air that will drop temperatures to 41°F (5°C) by Sunday morning.
Sunday, February 16: A Noticeable Cool-Down
By Sunday, San Antonio will feel much different. While it won’t be freezing yet, you’ll definitely need a jacket.
- Morning: Temperatures will start in the low 40s and struggle to warm up.
- Afternoon: Despite the sunshine, the high will only reach 60°F (16°C), much cooler than Saturday.
- Evening: By nightfall, temperatures will dip even further to 33°F (1°C).
Tuesday & Wednesday: Arctic Blast Brings Freezing Lows and Possible Ice
This second cold front is the real troublemaker. It arrives Tuesday and will bring the coldest air of the season, with potential for freezing rain.
- Tuesday Night: Expect freezing temperatures as lows drop into the upper teens and low 20s. Wind chills will make it feel even colder.
- Wednesday Morning: If moisture lingers, a wintry mix could develop, bringing freezing rain or sleet. While it’s too early to predict exact amounts, icy roads could be a concern.
Why This Weather Change Is So Extreme
San Antonio is known for wild weather swings, but a drop of over 40 degrees in just a few days is extreme even by Texas standards.
The first cold front will bring mild cooling, but the second front will be an Arctic blast straight from Canada, bringing subfreezing temperatures.
This sudden shift can be dangerous for people, pets, plants, and pipes, so preparation is key.
How to Prepare for the Upcoming Freeze
- Dress for Two Different Seasons: You’ll need T-shirts and sunglasses on Saturday but heavy coats and scarves by Tuesday.
- Protect Pets and Plants: Bring outdoor pets inside and cover or move sensitive plants indoors before freezing temperatures arrive.
- Prepare for Possible Icy Roads: If freezing rain develops, roads could become slick. Use caution if driving Tuesday night or Wednesday morning.
- Wrap and Insulate Pipes: Subfreezing temperatures can cause burst pipes. Make sure exposed pipes are wrapped or insulated.
- Check on Elderly Neighbors & Family: Extreme cold can be dangerous for vulnerable populations.
Final Thoughts
San Antonio is about to go from springtime warmth to a winter blast in just a matter of days. Saturday will be warm and pleasant, but by Tuesday night, freezing air and potential ice will take over.
