San Antonio is about to experience one of the most extreme weeks of weather so far this year, with temperatures soaring into the mid-80s before a powerful cold front crashes in, dropping temperatures nearly 40 degrees overnight.
If that weren’t enough, the city will also see rainy mornings, strong winds, and big shifts between warm, springlike conditions and crisp winter air. For those who like consistency, this won’t be your favorite forecast—but for weather enthusiasts, it’s going to be a fascinating ride.
So, what’s in store? Expect major temperature swings, fluctuating rain chances, and a mix of sunshine and clouds throughout the week.
When Will the Biggest Weather Changes Hit?
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Wednesday, February 12: Here’s where things get interesting. The morning starts with a possible shower, but as the sun breaks through, temperatures will skyrocket to 84°F (29°C). Don’t get used to the warmth, though—by nighttime, a strong cold front will send temperatures crashing down to 40°F (5°C).
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Thursday, February 13: The cold front settles in, bringing a dramatic change in the air. Expect cloudy skies, strong winds, and a high of only 50°F (10°C). The overnight low will remain chilly at 42°F (5°C).
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Friday, February 14 (Valentine’s Day): Cool and calm conditions persist, with a mix of clouds and sunshine. Temperatures will be around 56°F (13°C) during the day, cooling to 52°F (11°C) at night—a good evening for a cozy indoor dinner.
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Saturday, February 15: Just when you start getting used to the cold, the warmth returns. A partly sunny day with a high of 77°F (25°C) makes it perfect for outdoor plans. But, of course, the temperature will take another nosedive overnight, dropping to 40°F (5°C).
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Sunday, February 16: The cold returns, but at least it comes with plenty of sunshine. Expect a high of 56°F (14°C) and a low of 31°F (0°C) overnight.
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Monday, February 17: A warming trend begins as temperatures climb to 63°F (17°C) under sunny skies. The nighttime low will be 47°F (8°C).
How This Will Impact San Antonio Residents
With temperatures jumping up and down, residents should prepare for a week where you might need a T-shirt one day and a winter coat the next. The rapid swings could cause:
- Health concerns: Sudden cold snaps can trigger colds, flu, and allergies, so bundle up and take precautions.
- Difficult driving conditions: Rain in the mornings combined with strong winds from the cold front could create slick roads—drive carefully and allow extra time.
- Outdoor plan disruptions: If you’re planning a weekend picnic, Saturday looks best, but Valentine’s Day evening will be chilly for any outdoor dining.
- Higher energy use: Heating and cooling systems will be working overtime as temperatures swing between the 80s and freezing within days.
How to Stay Prepared for This Wild Weather Week
- Dress in layers: One moment, you’ll need a jacket; the next, you’ll be sweating in the sun. Dressing in layers will help adjust to changing conditions.
- Keep an umbrella handy: Morning showers could sneak up on you, especially early in the week.
- Check road conditions: The sudden drop in temperatures after Wednesday’s warm-up could lead to patchy fog or wet roads—be careful during early commutes.
- Prepare your home for the cold: If you turned off your heater during the recent warm weather, you’ll need it again this week. Make sure it’s ready to go.
Final Thoughts
San Antonio is in for a wild mix of seasons in just one week—from springlike warmth to full-on winter chills and multiple temperature drops of 30 to 40 degrees overnight.
If you’re hoping for a stable forecast, this isn’t it—but if you like surprises, San Antonio’s weather is about to keep you on your toes.
