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.

Overcast

79°F

26°C

Humidity 79%
Wind Speed Calm
Barometer 30.05 in (1015.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 23 Sep 8:51 pm CDT
Extended Forecast for

San Antonio TX

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 77. East wind around 5 mph becoming calm after midnight.

    Low: 77 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 95. Heat index values as high as 101. North northeast wind 5 to 10 mph becoming east in the afternoon.

    High: 95 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 77. East wind 5 to 10 mph becoming light south southeast after midnight.

    Low: 77 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 95. East southeast wind around 5 mph.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 76. South southeast wind around 5 mph.

    Low: 76 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 95. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 95 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 76. Southeast wind around 5 mph.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 95. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 95 °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

Detailed Forecast

Tonight
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 77. East wind around 5 mph becoming calm after midnight.
Thursday
Increasing clouds, with a high near 95. Heat index values as high as 101. North northeast wind 5 to 10 mph becoming east in the afternoon.
Thursday Night
Mostly cloudy, with a low around 77. East wind 5 to 10 mph becoming light south southeast after midnight.
Friday
Mostly sunny, with a high near 95. East southeast wind around 5 mph.
Friday Night
Partly cloudy, with a low around 76. South southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 95. Calm wind becoming south southeast around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 76. Southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 95. Calm wind becoming south southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 77. South southeast wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 77.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 94.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly 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:
8:14 pm CDT Sep 23, 2026
Forecast Valid:
9pm CDT Sep 23, 2026-6pm CDT Sep 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation