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

92°F

33°C

Humidity 52%
Wind Speed SE 8 mph
Barometer 29.95 in (1012.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 5 Sep 11:53 am CDT
Extended Forecast for

San Antonio, Stinson Municipal Airport TX

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 97. Heat index values as high as 101. Southeast wind around 5 mph.

    High: 97 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph becoming light southeast after midnight.

    Low: 78 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Heat index values as high as 104. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 98 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny and hot, with a high near 99. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. East southeast wind 5 to 10 mph.

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Partly sunny, with a high near 97. Heat index values as high as 101. Southeast wind around 5 mph.
Tonight
Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph becoming light southeast after midnight.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Heat index values as high as 104. Calm wind becoming east southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph.
Labor Day
Mostly sunny and hot, with a high near 99. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 99. Light southeast wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 76. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. East southeast wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 75.
Thursday
Mostly sunny, with a high near 97.
Thursday Night
Mostly clear, with a low around 76.
Friday
Sunny, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio, Stinson Municipal Airport TX
 29.32°N 98.47°W (Elev. 581 ft)
Last Update:
11:32 am CDT Sep 5, 2026
Forecast Valid:
12pm CDT Sep 5, 2026-6pm CDT Sep 11, 2026
 
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