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

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Fair

79°F

26°C

Humidity 85%
Wind Speed SE 7 mph
Barometer 29.98 in (1013.6 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 31 Jul 1:53 am CDT
Extended Forecast for

3 Miles NW San Antonio, Stinson Municipal Airport TX

  • Overnight

    Overnight: Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 107. South wind around 5 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming south southwest around 5 mph.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 80. East southeast wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 80 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 99. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79. East northeast wind around 5 mph becoming south after midnight.

    Low: 79 °F

    Mostly Clear

  • Monday

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

    High: 100 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 78. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Friday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 107. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming south southwest around 5 mph.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 80. East southeast wind around 5 mph becoming west after midnight. Chance of precipitation is 20%.
Sunday
Mostly sunny and hot, with a high near 99. Calm wind becoming east northeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 79. East northeast wind around 5 mph becoming south after midnight.
Monday
Sunny and hot, with a high near 100. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Clear, with a low around 78. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Mostly sunny, with a high near 97.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Mostly sunny, with a high near 97.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW San Antonio, Stinson Municipal Airport TX
 29.37°N 98.5°W (Elev. 614 ft)
Last Update:
1:30 am CDT Jul 31, 2026
Forecast Valid:
2am CDT Jul 31, 2026-6pm CDT Aug 6, 2026
 
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Additional Resources

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Chance of Precipitation