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

92°F

33°C

Humidity 51%
Wind Speed S 8 G 18 mph
Barometer 30.07 in (1016.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 6 Aug 12:51 pm CDT
Extended Forecast for

San Antonio TX

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 99. Heat index values as high as 106. South southeast wind around 5 mph.

    High: 99 °F

    Hot

  • Tonight

    Tonight: Increasing clouds, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 97. Heat index values as high as 105. South southeast wind around 5 mph.

    High: 97 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 96. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 96 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Light southeast wind increasing to 5 to 10 mph in the afternoon.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 96. South southeast wind 5 to 10 mph.

    High: 96 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 99. Heat index values as high as 106. South southeast wind around 5 mph.
Tonight
Increasing clouds, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 97. Heat index values as high as 105. South southeast wind around 5 mph.
Friday Night
Increasing clouds, with a low around 76. South southeast wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 96. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 96. Light southeast wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 96. South southeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Mostly sunny, with a high near 98.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Mostly sunny and hot, with a high near 99.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
1:06 pm CDT Aug 6, 2026
Forecast Valid:
1pm CDT Aug 6, 2026-6pm CDT Aug 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation