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

80°F

27°C

Humidity 51%
Wind Speed NE 6 mph
Barometer 29.98 in (1013.3 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 8 Oct 9:51 pm CDT
Extended Forecast for

Castle Hills TX

  • Tonight

    Tonight: Mostly clear, with a low around 70. North northeast wind around 5 mph.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. East northeast wind around 5 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 68. East northeast wind around 5 mph becoming north after midnight.

    Low: 68 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 90. North wind around 5 mph becoming calm.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 69. East southeast wind around 5 mph.

    Low: 69 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 91. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. Southeast wind 5 to 15 mph.

    Low: 72 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 92. South southeast wind 5 to 10 mph.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. South southeast wind around 10 mph.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 70. North northeast wind around 5 mph.
Friday
Sunny, with a high near 90. East northeast wind around 5 mph.
Friday Night
Clear, with a low around 68. East northeast wind around 5 mph becoming north after midnight.
Saturday
Sunny, with a high near 90. North wind around 5 mph becoming calm.
Saturday Night
Clear, with a low around 69. East southeast wind around 5 mph.
Sunday
Sunny, with a high near 91. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 72. Southeast wind 5 to 15 mph.
Columbus Day
Mostly sunny, with a high near 92. South southeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 75. South southeast wind around 10 mph.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.53°N 98.53°W (Elev. 846 ft)
Last Update:
6:42 pm CDT Oct 8, 2026
Forecast Valid:
10pm CDT Oct 8, 2026-6pm CDT Oct 15, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation