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

90°F

32°C

Humidity 48%
Wind Speed SE 13 G 23 mph
Barometer 29.94 in (1011.7 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 7 Sep 9:51 pm CDT
Extended Forecast for

San Antonio TX

  • Tonight

    Tonight: Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 102. South southeast wind around 5 mph.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 98. Heat index values as high as 104. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 98 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 97. Calm wind becoming south around 5 mph.

    High: 97 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 78. South wind around 5 mph.

    Low: 78 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 99. South wind around 5 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 78. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 99. Heat index values as high as 102. South southeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 98. Heat index values as high as 104. Calm wind becoming south southeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 78. South wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 97. Calm wind becoming south around 5 mph.
Thursday Night
Partly cloudy, with a low around 78. South wind around 5 mph.
Friday
Sunny and hot, with a high near 99. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 78. Southeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
Sunny and hot, with a high near 100.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Mostly sunny, with a high near 98.
Sunday Night
Mostly clear, with a low around 77.
Monday
Mostly sunny, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
9:44 pm CDT Sep 7, 2026
Forecast Valid:
10pm CDT Sep 7, 2026-6pm CDT Sep 14, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation