Gusts up to 50 mph are possible Sunday night
Extended Forecast (Copyright 2026 by KSAT – All rights reserved.)FORECAST HIGHLIGHTS
TONGIHT: High fire danger. Strong cold front. 40-50 mph wind gusts.
MONDAY: Near 40° at sunrise. Highs in the 50s. High fire danger
TUESDAY MORNING: 30s. Above freezing for San Antonio. Light freeze in Hill Country
FORECAST
RECORD HEAT
The dry air helped push temperatures above our last record! Breaking a record that’s stood since 1908.
Record breaking heat Sunday (Copyright 2026 by KSAT – All rights reserved.)
TONIGHT
A strong cold front moved through Sunday and the gusty north winds will have already kicked in. Gusts of up to 40-50 mph are possible through the evening and overnight hours.
Winds will be VERY GUSTY Sunday night (Copyright 2026 by KSAT – All rights reserved.)
While we don’t expect widespread power outages, these kinds of winds can cause tree limbs to sway and potentially break, interacting with power lines. This *may* cause spotty power outages tonight.
Meanwhile, the fire danger will be very high. Please avoid any kind of outdoor burning and dispose of cigarettes properly. A RED FLAG WARNING is in effect until 8 pm Monday.
Red Flag Warning is in effect from Noon Sunday through 8 pm Monday (Copyright 2026 by KSAT – All rights reserved.)
MONDAY & TUESDAY
As we head back to work and school, temps will plummet by Monday morning. We will be cold, but above freezing. San Antonio will dip to near 40°. Monday night will be cold, and by Tuesday morning, many of us will be in the 30s. While we expect temperatures to stay just above freezing in San Antonio, outlying areas may briefly touch freezing.
Tuesday morning will bring a light freeze to the Hill Country (Copyright 2026 by KSAT – 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 AuthorsSarah Spivey headshotSarah Spivey
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 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.
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