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.

Partly Cloudy

82°F

28°C

Humidity 67%
Wind Speed SE 14 mph
Barometer 30.02 in (1014.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 14 Aug 12:51 am CDT
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 79. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 104. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 98 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Increasing clouds, with a low around 79. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Increasing
    Clouds

  • Saturday

    Saturday: 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, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 99. South southeast wind around 5 mph.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday 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

  • 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. Southeast wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 79. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 104. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Increasing clouds, with a low around 79. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
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, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny and hot, with a high near 99. South southeast wind around 5 mph.
Sunday Night
Mostly clear, with a low around 77. 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. Southeast wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Mostly clear, with a low around 78.
Thursday
Mostly sunny and hot, with a high near 100.
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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:
1:28 am CDT Aug 14, 2026
Forecast Valid:
1am CDT Aug 14, 2026-6pm CDT Aug 20, 2026
 
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Additional Resources

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