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

71°F

22°C

Humidity 66%
Wind Speed SE 15 G 24 mph
Barometer 29.98 in (1013.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 26 Mar 11:51 pm CDT
Extended Forecast for

Castle Hills TX

  • Overnight

    Overnight: Increasing clouds, with a low around 63. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 86. South wind 5 to 10 mph becoming east northeast in the afternoon.

    High: 86 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 56. North wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 70. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. East northeast wind around 5 mph becoming southeast after midnight.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 84. South wind 5 to 10 mph.

    High: 84 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 89. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 89 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Overnight
Increasing clouds, with a low around 63. South wind around 10 mph, with gusts as high as 20 mph.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 86. South wind 5 to 10 mph becoming east northeast in the afternoon.
Friday Night
Increasing clouds, with a low around 56. North wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday
Partly sunny, with a high near 70. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 58. East northeast wind around 5 mph becoming southeast after midnight.
Sunday
Partly sunny, with a high near 84. South wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 63. South southeast wind around 10 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 89. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 64. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Partly sunny, with a high near 92.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.53°N 98.53°W (Elev. 846 ft)
Last Update:
12:44 am CDT Mar 27, 2026
Forecast Valid:
12am CDT Mar 27, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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