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 82%
Wind Speed SE 10 mph
Barometer 30.02 in (1014.7 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 19 Jul 1:51 am CDT
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 94. Heat index values as high as 101. South southeast wind 5 to 10 mph.

    High: 94 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South southeast wind 5 to 10 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. Heat index values as high as 100. South southeast wind around 5 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 72. Southeast wind 5 to 10 mph.

    Low: 72 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm after midnight.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. Southeast wind around 5 mph becoming calm after midnight.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 94. Heat index values as high as 101. South southeast wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 73. South southeast wind 5 to 10 mph.
Monday
Sunny, with a high near 95. Heat index values as high as 100. South southeast wind around 5 mph.
Monday Night
Clear, with a low around 72. Southeast wind 5 to 10 mph.
Tuesday
Sunny, with a high near 95. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 96. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 78. Southeast wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 97.
Thursday Night
Mostly clear, with a low around 79.
Friday
Sunny, with a high near 97.
Friday Night
Mostly clear, with a low around 79.
Saturday
Sunny, with a high near 96.
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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:
1:42 am CDT Jul 19, 2026
Forecast Valid:
2am CDT Jul 19, 2026-6pm CDT Jul 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation