National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Fair

79°F

26°C

Humidity 82%
Wind Speed SE 5 mph
Barometer 29.97 in (1013.4 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Aug 2:53 am CDT
Extended Forecast for

4 Miles NNW San Antonio, Stinson Municipal Airport TX

Heat Advisory August 20, 02:00pm until August 23, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 78. South southeast wind around 5 mph.

    Low: 78 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 102. Heat index values as high as 109. South wind around 5 mph.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 102. Heat index values as high as 108. Southeast wind around 5 mph.

    High: 102 °F

    Hot

  • Friday Night

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

    Low: 79 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 103. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 103 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 80. Southeast wind 5 to 10 mph.

    Low: 80 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 102. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 102 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 78. South southeast wind around 5 mph.
Thursday
Mostly sunny and hot, with a high near 102. Heat index values as high as 109. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny and hot, with a high near 102. Heat index values as high as 108. Southeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 103. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 80. Southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 102. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 79. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny and hot, with a high near 102.
Monday Night
Mostly clear, with a low around 79.
Tuesday
Sunny and hot, with a high near 101.
Tuesday Night
Clear, with a low around 79.
Wednesday
Sunny and hot, with a high near 101.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW San Antonio, Stinson Municipal Airport TX
 29.39°N 98.5°W (Elev. 607 ft)
Last Update:
2:44 am CDT Aug 20, 2026
Forecast Valid:
3am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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