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.

Light Rain

79°F

26°C

Humidity 88%
Wind Speed SE 8 mph
Barometer 30.08 in (1016.8 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Sep 3:51 pm CDT
Extended Forecast for

San Antonio TXSimilar City Names

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 92. East southeast wind around 10 mph.

    High: 92 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 76. East southeast wind 5 to 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 97. Heat index values as high as 101. Southeast wind around 5 mph.

    High: 97 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 98. South southeast wind around 5 mph.

    High: 98 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 98. South wind around 5 mph becoming east in the morning.

    High: 98 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. East southeast wind around 5 mph becoming calm after midnight.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 98 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 92. East southeast wind around 10 mph.
Tonight
Partly cloudy, with a low around 76. East southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 97. Heat index values as high as 101. Southeast wind around 5 mph.
Saturday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 98. South southeast wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 98. South wind around 5 mph becoming east in the morning.
Monday Night
Mostly clear, with a low around 77. East southeast wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 98. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77.
Wednesday
Mostly sunny, with a high near 98.
Wednesday Night
Partly cloudy, with a low around 77.
Thursday
Mostly sunny, with a high near 97.
Thursday Night
Partly cloudy, with a low around 77.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TXSimilar City Names
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
2:44 pm CDT Sep 18, 2026
Forecast Valid:
4pm CDT Sep 18, 2026-6pm CDT Sep 25, 2026
 
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