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.

Partly Cloudy

80°F

27°C

Humidity 74%
Wind Speed S 6 mph
Barometer 30.14 in (1018.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 2 Aug 3:51 am CDT
Extended Forecast for

Kirby TXSimilar City Names

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 107. Calm wind becoming east around 5 mph in the afternoon.

    High: 100 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. West northwest wind around 5 mph becoming east southeast after midnight.

    Low: 77 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Sunny and hot, with a high near 101. Heat index values as high as 107. East wind around 5 mph becoming south in the afternoon.

    High: 101 °F

    Hot

  • Sunday Night

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

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. South southeast wind 5 to 10 mph.

    High: 99 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. East southeast wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 97. South southeast wind 5 to 10 mph.

    High: 97 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. East wind 5 to 10 mph becoming south after midnight.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98. South wind 5 to 10 mph.

    High: 98 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 107. Calm wind becoming east around 5 mph in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. West northwest wind around 5 mph becoming east southeast after midnight.
Sunday
Sunny and hot, with a high near 101. Heat index values as high as 107. East wind around 5 mph becoming south in the afternoon.
Sunday Night
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. South southeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 77. East southeast wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 97. South southeast wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 75. East wind 5 to 10 mph becoming south after midnight.
Wednesday
Sunny, with a high near 98. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny, with a high near 98.
Thursday Night
Mostly clear, with a low around 76.
Friday
Sunny and hot, with a high near 99.
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ABOUT THIS FORECAST

 
Point Forecast:
Kirby TXSimilar City Names
 29.46°N 98.37°W (Elev. 728 ft)
Last Update:
3:32 am CDT Aug 2, 2025
Forecast Valid:
4am CDT Aug 2, 2025-6pm CDT Aug 8, 2025
 
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