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.

Overcast

68°F

20°C

Humidity 51%
Wind Speed SE 5 mph
Barometer 30.19 in (1021.1 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 12 Feb 10:51 am CST
Extended Forecast for

Castle Hills TX

  • Today

    Today: Mostly sunny, with a high near 80. South wind around 5 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 60. Southeast wind around 5 mph becoming calm after midnight.

    Low: 60 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, with a high near 81. Light south southeast wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 81 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 63. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 3pm, then showers likely. High near 81. South southeast wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    High: 81 °F

    Showers

  • Saturday Night

    Saturday Night: Clear, with a low around 56. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 78. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. North wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 80. South wind around 5 mph.
Tonight
Increasing clouds, with a low around 60. Southeast wind around 5 mph becoming calm after midnight.
Friday
Mostly cloudy, with a high near 81. Light south southeast wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 63. South southeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
Showers and possibly a thunderstorm before 3pm, then showers likely. High near 81. South southeast wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Clear, with a low around 56. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 78. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 48. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 85.
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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:
11:02 am CST Feb 12, 2026
Forecast Valid:
11am CST Feb 12, 2026-6pm CST Feb 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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