The latest forecast from Your Weather Authority (Copyright 2025 by KSAT - All rights reserved.)
FORECAST HIGHLIGHTS
WEDNESDAY MORNING: A light freeze is possible
WEDNESDAY AFTERNOON: Pleasant, 60s
FIREWORKS: Chilly & mostly clear to ring in 2026
NEW YEAR’S DAY: Sunny & 70s
WARMING UP: 80s Friday, 70s Weekend
FORECAST
TONIGHT
Quickly cooling tonight with very dry air and clear skies. So, I do think that many neighborhoods will briefly reach freezing before sunrise tomorrow.
We’re really only talking about a light freeze for at most an hour. Still, if you have potted plants, it might be a good idea to bring them inside or cover them if they are too heavy to move indoors. Make sure your pets have a warm place to stay. You do NOT need to worry about plumbing issues.
Many neighborhoods around San Antonio will briefly dip to freezing early Wednesday morning. (Copyright 2025 by KSAT - All rights reserved.)
GOODBYE 2025, HELLO 2026
After the brief cold start Wednesday morning, it’ll be a great last day of 2025! We warm into the upper-60s by the afternoon.
If you’re planning on enjoying some legal 😉 fireworks, don’t forget the jacket! It’ll be chilly with temps in the mid-40s by midnight. I fully expect some smoke to be in the air from midnight to 2 am!
As we ring in 2026, it'll be chilly! (Copyright 2025 by KSAT - All rights reserved.)
THIS WEEK
A strong warming trend kicks in Friday with highs in the 80s. The weekend stays dry and warm under high pressure—perfect for outdoor plans.
The latest forecast from Your Weather Authority (Copyright 2025 by KSAT - All rights reserved.)
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 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.