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

93°F

34°C

Humidity 37%
Wind Speed E 7 mph
Barometer 29.99 in (1013.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 25 Sep 3:51 pm CDT
Extended Forecast for

San Antonio TX

  • Tonight

    Tonight: Partly cloudy, with a low around 77. East southeast wind around 5 mph.

    Low: 77 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 94. East wind around 5 mph becoming calm.

    High: 94 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. East southeast wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Heat index values as high as 101. Calm wind becoming south around 5 mph.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 77. South southeast wind around 5 mph.

    Low: 77 °F

    Partly Cloudy

  • Monday

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

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. Southeast wind around 10 mph.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 95. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 78. Southeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 78 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 77. East southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 94. East wind around 5 mph becoming calm.
Saturday Night
Partly cloudy, with a low around 75. East southeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 96. Heat index values as high as 101. Calm wind becoming south around 5 mph.
Sunday Night
Partly cloudy, with a low around 77. South southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 96. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 77. Southeast wind around 10 mph.
Tuesday
Mostly cloudy, with a high near 95. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 78. Southeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 94. Chance of precipitation is 50%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.44°N 98.5°W (Elev. 650 ft)
Last Update:
2:48 pm CDT Sep 25, 2026
Forecast Valid:
4pm CDT Sep 25, 2026-6pm CDT Oct 2, 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