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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

100°F

38°C

Humidity 28%
Wind Speed SE 13 mph
Barometer 29.94 in (1012.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 25 Aug 3:53 pm CDT
Extended Forecast for

3 Miles WSW San Antonio, Stinson Municipal Airport TX

Heat Advisory August 25, 04:29pm until August 26, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 25, 04:29pm until August 26, 07:00pm

    NOW until 7:00pm Wed

    Heat Advisory

  • Tonight

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 103. South wind around 5 mph.

    High: 103 °F

    Hot

  • Wednesday Night

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

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Heat index values as high as 105. Calm wind becoming east around 5 mph in the afternoon.

    High: 101 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 79. South southeast wind around 5 mph.

    Low: 79 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Sunny and hot, with a high near 100. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. East southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. Light southeast wind becoming east southeast 5 to 10 mph in the afternoon.

    High: 99 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Southeast wind 5 to 15 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny and hot, with a high near 103. South wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Heat index values as high as 105. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 79. South southeast wind around 5 mph.
Friday
Sunny and hot, with a high near 100. Calm wind becoming east northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 77. East southeast wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 99. Light southeast wind becoming east southeast 5 to 10 mph in the afternoon.
Saturday Night
Clear, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 99.
Sunday Night
Clear, with a low around 76.
Monday
Sunny and hot, with a high near 99.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW San Antonio, Stinson Municipal Airport TX
 29.32°N 98.53°W (Elev. 640 ft)
Last Update:
3:42 pm CDT Aug 25, 2026
Forecast Valid:
4pm CDT Aug 25, 2026-6pm CDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation