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

68°F

20°C

Humidity 17%
Wind Speed Calm
Barometer 30.25 in (1023.3 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 5 Feb 5:51 pm CST
Extended Forecast for

Castle Hills TX

  • Tonight

    Tonight: Clear, with a low around 46. West wind around 5 mph.

    Low: 46 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 79. West wind around 5 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 49. Calm wind becoming north around 5 mph after midnight.

    Low: 49 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 78. North wind around 5 mph becoming southeast in the afternoon.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. Southeast wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 76. Calm wind becoming south around 5 mph in the afternoon.

    High: 76 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55. South southeast wind around 5 mph becoming calm after midnight.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 76. Calm wind becoming south around 5 mph in the morning.

    High: 76 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of showers, mainly after midnight. Cloudy, with a low around 58. South southeast wind around 5 mph.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 46. West wind around 5 mph.
Friday
Sunny, with a high near 79. West wind around 5 mph.
Friday Night
Clear, with a low around 49. Calm wind becoming north around 5 mph after midnight.
Saturday
Sunny, with a high near 78. North wind around 5 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 50. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly cloudy, with a high near 76. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 55. South southeast wind around 5 mph becoming calm after midnight.
Monday
Mostly cloudy, with a high near 76. Calm wind becoming south around 5 mph in the morning.
Monday Night
A 30 percent chance of showers, mainly after midnight. Cloudy, with a low around 58. South southeast wind around 5 mph.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 76.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Partly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.53°N 98.53°W (Elev. 846 ft)
Last Update:
5:45 pm CST Feb 5, 2026
Forecast Valid:
6pm CST Feb 5, 2026-6pm CST Feb 12, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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