Brief afternoon showers possible but unlikely to bring lasting relief<\/p>\n
We settle in to a continued hot, 100\u00b0+ streak. (Copyright 2026 KSAT 12 — ALL RIGHTS RESERVED)FORECAST HIGHLIGHTS<\/p>\n
SATURDAY: Hot with highs reaching near 102\u00b0 again<\/p>\n
SUNDAY: Around 100\u00b0 or hotter, mostly dry<\/p>\n
HEAT ADVISORY: Heat Advisory in effect through Sunday for heat indices reaching 108\u00b0+.<\/p>\n
NEXT WEEK: The August heat wave isn\u2019t going anywhere anytime soon with little rain relief<\/p>\n
FORECAST<\/p>\n
THIS WEEKEND<\/p>\n
San Antonio hit the hottest afternoon this summer at 103\u00b0! <\/p>\n
San Antonio hit the hottest temperature of the summer this afternoon. (Copyright 2026 by KSAT – All rights reserved.)<\/p>\n
Sunday will bring more of the same, with temperatures again expected to reach 100\u00b0 or higher. Lower humidity in the afternoon keeps heat index values similar to air temperatures, but the extreme heat continues to pose a significant safety risk for outdoor activities. <\/p>\n
HEAT STICKS AROUND<\/p>\n
The unrelenting heat wave is set to continue, as high pressure maintains triple-digit temperatures throughout the coming week with minimal precipitation expected to provide any cooling.<\/p>\n
Extended forecast (Copyright 2026 by KSAT – All rights reserved.)Daily Forecast<\/p>\n
KSAT meteorologists keep you on top of the ever-changing South Texas weather.<\/p>\n
QUICK WEATHER LINKS<\/p>\n
Copyright 2026 by KSAT – All rights reserved.<\/p>\n
About the AuthorsShelby Ebertowski headshotShelby Ebertowski<\/a><\/p>\n 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.<\/p>\n