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

69°F

21°C

Humidity 15%
Wind Speed SE 6 mph
Barometer 30.19 in (1021.2 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 12 Mar 6:51 pm CDT
Extended Forecast for

Castle Hills TX

  • Tonight

    Tonight: Clear, with a low around 43. Calm wind.

    Low: 43 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 79. Southwest wind 5 to 10 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 52. South wind around 5 mph becoming calm after midnight.

    Low: 52 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62. South southeast wind 5 to 10 mph.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 92. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 92 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. Breezy, with a north northeast wind 15 to 25 mph, with gusts as high as 35 mph.

    Low: 42 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 61. North northeast wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. East wind 5 to 10 mph.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 43. Calm wind.
Friday
Sunny, with a high near 79. Southwest wind 5 to 10 mph.
Friday Night
Clear, with a low around 52. South wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 62. South southeast wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 92. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 42. Breezy, with a north northeast wind 15 to 25 mph, with gusts as high as 35 mph.
Monday
Mostly sunny, with a high near 61. North northeast wind 10 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 38. East wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 81.
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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:
6:44 pm CDT Mar 12, 2026
Forecast Valid:
7pm CDT Mar 12, 2026-6pm CDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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