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

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

79°F

26°C

Humidity 82%
Wind Speed SE 9 mph
Barometer 29.99 in (1013.4 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 5 Aug 3:51 am CDT
Extended Forecast for

San Antonio TX

  • Today

    Today: Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 106. South southeast wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Tonight

    Tonight: Increasing clouds, with a low around 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 106. South southeast wind around 5 mph.

    High: 98 °F

    Decreasing
    Clouds

  • Thursday Night

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

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 97. South southeast wind around 5 mph.

    High: 97 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 97. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 97 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77. East southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 97 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 106. South southeast wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 106. South southeast wind around 5 mph.
Thursday Night
Mostly clear, with a low around 77. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 97. South southeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 97. Calm wind becoming east southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 77. East southeast wind 5 to 10 mph.
Sunday
Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 77.
Monday
Mostly sunny, with a high near 97.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Mostly sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.44°N 98.5°W (Elev. 650 ft)
Last Update:
2:44 am CDT Aug 5, 2026
Forecast Valid:
4am CDT Aug 5, 2026-6pm CDT Aug 11, 2026
 
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Additional Resources

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