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

96°F

36°C

Humidity 35%
Wind Speed S 6 mph
Barometer 29.94 in (1012.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 29 Aug 6:51 pm CDT
Extended Forecast for

Kirby TX

  • Tonight

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

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 98. Heat index values as high as 105. Light south southeast wind increasing to 5 to 10 mph in the morning.

    High: 98 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. Southeast wind 5 to 10 mph.

    High: 98 °F

    Becoming
    Sunny

  • Monday Night

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

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98. Light south southeast wind becoming southeast 5 to 10 mph in the morning.

    High: 98 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. Southeast wind 5 to 15 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

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

    High: 99 °F

    Hot

  • Wednesday Night

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

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.
Sunday
Sunny, with a high near 98. Heat index values as high as 105. Light south southeast wind increasing to 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 75. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. Southeast wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.
Tuesday
Sunny, with a high near 98. Light south southeast wind becoming southeast 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 76. Southeast wind 5 to 15 mph.
Wednesday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 76. Southeast wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 76.
Friday
Mostly sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny and hot, with a high near 99.
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ABOUT THIS FORECAST

 
Point Forecast:
Kirby TX
 29.46°N 98.37°W (Elev. 728 ft)
Last Update:
6:44 pm CDT Aug 29, 2026
Forecast Valid:
7pm CDT Aug 29, 2026-6pm CDT Sep 5, 2026
 
Forecast Discussion
 
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Additional Resources

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