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.

Partly Cloudy

79°F

26°C

Humidity 88%
Wind Speed SE 3 mph
Barometer 30.09 in (1017.3 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 9 Sep 6:53 am CDT
Extended Forecast for

San Antonio, Stinson Municipal Airport TX

  • Today

    Today: Mostly sunny and hot, with a high near 99. Heat index values as high as 103. Light east southeast wind increasing to 5 to 10 mph in the morning.

    High: 99 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 76. East southeast wind 5 to 10 mph becoming light after midnight.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 98. Heat index values as high as 104. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 98 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 75. East southeast wind 5 to 10 mph.

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 100. Light south southeast wind increasing to 5 to 10 mph in the afternoon.

    High: 100 °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: Sunny and hot, with a high near 101. South southeast wind 5 to 15 mph.

    High: 101 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 100. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 100 °F

    Hot

Detailed Forecast

Today
Mostly sunny and hot, with a high near 99. Heat index values as high as 103. Light east southeast wind increasing to 5 to 10 mph in the morning.
Tonight
Partly cloudy, with a low around 76. East southeast wind 5 to 10 mph becoming light after midnight.
Thursday
Mostly sunny, with a high near 98. Heat index values as high as 104. Calm wind becoming south southeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 75. East southeast wind 5 to 10 mph.
Friday
Sunny and hot, with a high near 100. Light south southeast wind increasing to 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny and hot, with a high near 101. South southeast wind 5 to 15 mph.
Saturday Night
Mostly clear, with a low around 77. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny and hot, with a high near 100. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Mostly sunny and hot, with a high near 100.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Mostly sunny and hot, with a high near 100.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio, Stinson Municipal Airport TX
 29.35°N 98.48°W (Elev. 577 ft)
Last Update:
6:42 am CDT Sep 9, 2026
Forecast Valid:
7am CDT Sep 9, 2026-6pm CDT Sep 15, 2026
 
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