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.

Overcast

80°F

27°C

Humidity 90%
Wind Speed SE 5 mph
Barometer 30.10 in (1017.9 mb)
Dewpoint 77°F (25°C)
Visibility 9.00 mi
Heat Index86°F (30°C)
Last update 15 Aug 7:53 am CDT
Extended Forecast for

3 Miles SSE San Antonio TX

  • Today

    Today: Mostly cloudy, then gradually becoming sunny and hot, with a high near 100. Heat index values as high as 104. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 100 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 103. South southeast wind around 5 mph.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: 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 78. South wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. South wind around 5 mph.

    High: 100 °F

    Hot

  • Tuesday Night

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

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. South wind 5 to 10 mph.

    High: 101 °F

    Hot

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny and hot, with a high near 100. Heat index values as high as 104. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 103. South southeast wind around 5 mph.
Sunday Night
Mostly clear, with a low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
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 78. South wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 100. South wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 78. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny and hot, with a high near 101. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 78.
Thursday
Mostly sunny and hot, with a high near 102.
Thursday Night
Mostly clear, with a low around 78.
Friday
Mostly sunny and hot, with a high near 101.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE San Antonio TX
 29.41°N 98.48°W (Elev. 646 ft)
Last Update:
6:44 am CDT Aug 15, 2026
Forecast Valid:
8am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
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