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.

A Few Clouds

75°F

24°C

Humidity 71%
Wind Speed W 3 mph
Barometer 30.09 in (1017.0 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 5 Aug 7:51 am CDT
Extended Forecast for

Kirby TX

  • Today

    Today: Sunny, with a high near 97. Heat index values as high as 105. Light north northeast wind becoming east northeast 5 to 10 mph in the afternoon.

    High: 97 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98. Heat index values as high as 103. Light east wind becoming southeast 5 to 10 mph in the afternoon.

    High: 98 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. Southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98. Calm wind becoming south southeast around 5 mph in the morning.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. South wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. South wind 5 to 10 mph.

    High: 99 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 97. Heat index values as high as 105. Light north northeast wind becoming east northeast 5 to 10 mph in the afternoon.
Tonight
Mostly clear, with a low around 74. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 98. Heat index values as high as 103. Light east wind becoming southeast 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 75. Southeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 98. Calm wind becoming south southeast around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.
Friday
Sunny and hot, with a high near 100. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 98.
Sunday Night
Mostly clear, with a low around 75.
Monday
Mostly sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kirby TX
 29.46°N 98.37°W (Elev. 728 ft)
Last Update:
6:57 am CDT Aug 5, 2025
Forecast Valid:
8am CDT Aug 5, 2025-6pm CDT Aug 11, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation