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

46°F

8°C

Humidity 47%
Wind Speed Calm
Barometer 30.31 in (1025.5 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 24 Feb 1:51 am CST
Extended Forecast for

Castle Hills TX

  • Overnight

    Overnight: Clear, with a low around 40. South southwest wind around 5 mph becoming calm.

    Low: 40 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. Light west southwest wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87. South southwest wind 5 to 10 mph.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. South wind around 5 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. Southwest wind 5 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 56. North northeast wind 5 to 10 mph.

    Low: 56 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 83. North northeast wind around 5 mph becoming east southeast in the afternoon.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. East southeast wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 40. South southwest wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 74. Light west southwest wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 53. South wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 87. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 58. South wind around 5 mph.
Thursday
Sunny, with a high near 87. Southwest wind 5 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Clear, with a low around 56. North northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 83. North northeast wind around 5 mph becoming east southeast in the afternoon.
Friday Night
Mostly clear, with a low around 56. East southeast wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Partly sunny, with a high near 83.
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:
12:44 am CST Feb 24, 2026
Forecast Valid:
2am CST Feb 24, 2026-6pm CST Mar 2, 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