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.

A Few Clouds

79°F

26°C

Humidity 77%
Wind Speed S 6 mph
Barometer 30.02 in (1014.6 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 19 Aug 3:51 am CDT
Extended Forecast for

San Antonio TXSimilar City Names

  • Today

    Today: Sunny and hot, with a high near 101. Heat index values as high as 104. South wind around 5 mph.

    High: 101 °F

    Hot

  • Tonight

    Tonight: Mostly clear during the evening, then mostly cloudy overnight, with a low around 79. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny and hot, with a high near 102. Heat index values as high as 108. South southeast wind around 5 mph.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 102. South wind around 5 mph.

    High: 102 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 80. Southeast wind around 5 mph.

    Low: 80 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 102. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 102 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 80. Southeast wind 5 to 10 mph.

    Low: 80 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 103. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 103 °F

    Hot

Detailed Forecast

Today
Sunny and hot, with a high near 101. Heat index values as high as 104. South wind around 5 mph.
Tonight
Mostly clear during the evening, then mostly cloudy overnight, with a low around 79. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, then gradually becoming sunny and hot, with a high near 102. Heat index values as high as 108. South southeast wind around 5 mph.
Thursday Night
Mostly clear, with a low around 79. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny and hot, with a high near 102. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 80. Southeast wind around 5 mph.
Saturday
Sunny and hot, with a high near 102. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 80. Southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 103. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 78.
Monday
Sunny and hot, with a high near 101.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Sunny and hot, with a high near 101.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TXSimilar City Names
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
2:46 am CDT Aug 19, 2026
Forecast Valid:
4am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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