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Hazardous Weather Conditions

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Fair

84°F

29°C

Humidity 70%
Wind Speed Calm
Barometer 30.05 in (1016.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 26 Aug 9:53 am CDT
Extended Forecast for

4 Miles SSE San Antonio TX

Heat Advisory August 26, 10:31am until August 26, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 26, 10:31am until August 26, 07:00pm

    NOW until 7:00pm Wed

    Heat Advisory

  • Today

    High: 103 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Heat index values as high as 106. Southwest wind around 5 mph becoming calm. Chance of precipitation is 30%.

    High: 101 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 78. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 78 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming east around 5 mph in the afternoon.

    High: 99 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 103. Southwest wind around 5 mph becoming southeast in the afternoon.
Tonight
Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Heat index values as high as 106. Southwest wind around 5 mph becoming calm. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 78. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.
Sunday
Sunny, with a high near 98. South southeast wind 5 to 10 mph.
Sunday Night
Clear, with a low around 77.
Monday
Sunny and hot, with a high near 99.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Mostly sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE San Antonio TX
 29.41°N 98.48°W (Elev. 646 ft)
Last Update:
6:42 am CDT Aug 26, 2026
Forecast Valid:
10am CDT Aug 26, 2026-6pm CDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation