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

79°F

26°C

Humidity 77%
Wind Speed SE 6 mph
Barometer 30.08 in (1016.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 25 Sep 1:51 am CDT
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 95. Calm wind becoming east around 5 mph in the morning.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 75. East wind around 5 mph.

    Low: 75 °F

    Partly Cloudy

  • Saturday

    Saturday: Cloudy, then becoming mostly sunny during the afternoon, with a high near 94. Calm wind becoming south southeast around 5 mph.

    High: 94 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. East southeast wind around 5 mph.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Calm wind becoming south around 5 mph.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 77 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 96. South southeast wind around 5 mph.

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 77. Calm wind.
Friday
Mostly sunny, with a high near 95. Calm wind becoming east around 5 mph in the morning.
Friday Night
Partly cloudy, with a low around 75. East wind around 5 mph.
Saturday
Cloudy, then becoming mostly sunny during the afternoon, with a high near 94. Calm wind becoming south southeast around 5 mph.
Saturday Night
Partly cloudy, with a low around 75. East southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 96. Calm wind becoming south around 5 mph.
Sunday Night
Partly cloudy, with a low around 77. Southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 96. South southeast wind around 5 mph.
Monday Night
Partly cloudy, with a low around 77. Southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 95.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 91.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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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:
1:24 am CDT Sep 25, 2026
Forecast Valid:
2am CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation