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Triple-digit heat wave after a beautiful Mother’s Day

Likely the earliest we’ve ever seen temps this high

Temps will soar into the triple-digits this week, smashing daily record highs (Copyright 2025 by KSAT - All rights reserved.)

FORECAST HIGHLIGHTS

  • AIR QUALITY: Alerts have been issued for high ozone levels Monday
  • TRIPLE DIGITS: San Antonio will approach 105° next week
  • RECORD BREAKING: San Antonio has the potential to break multiple daily records

FORECAST

If Wednesday’s forecast high of 103° verifies for San Antonio, it’ll be the earliest we’ve ever seen temps that high in the Alamo City 🤯

SIZZLING NEXT WEEK

Enjoy it while it lasts because starting Monday, a serious warm-up is set to take over. 90s are likely Monday afternoon. By Tuesday, we’ll likely have the first 100-degree day of the year. Temps will peak Wednesday, but triple-digit weather will likely continue into the weekend.

Forecasted temperatures for the upcoming week. (Copyright 2025 by KSAT - All rights reserved.)

RECORD-BREAKING HEAT

Not only will we likely break daily high temperature records, but this will probably be the earliest 100-degree heat wave in San Antonio’s weather record books.

Record and forecasted highs expected this week. (Copyright 2025 by KSAT - All rights reserved.)

Please remember your heat safety, as our bodies have yet to adjust to this level of heat!

Your 7 day forecast as of 5/11/25 (Copyright 2025 by KSAT - All rights reserved.)

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About the Authors
Sarah Spivey headshot

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 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.

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