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.

Fair

78°F

26°C

Humidity 87%
Wind Speed S 6 mph
Barometer 29.95 in (1012.0 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 4 Aug 6:51 am CDT
Extended Forecast for

San Antonio TXSimilar City Names

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 105. South southeast wind around 5 mph.

    High: 99 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 77. East wind 5 to 10 mph.

    Low: 77 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 97. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon.

    High: 97 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. East wind 5 to 10 mph becoming south after midnight.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 98 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the morning.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. South wind around 5 mph.

    High: 100 °F

    Hot

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 105. South southeast wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 77. East wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 97. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 76. East wind 5 to 10 mph becoming south after midnight.
Wednesday
Sunny, with a high near 98. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.
Friday
Sunny and hot, with a high near 100. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 77.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Sunny, with a high near 98.
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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:
6:44 am CDT Aug 4, 2025
Forecast Valid:
7am CDT Aug 4, 2025-6pm CDT Aug 10, 2025
 
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