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

61°F

16°C

Humidity 90%
Wind Speed Calm
Barometer 30.00 in (1014.3 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 23 Mar 4:51 am CDT
Extended Forecast for

Castle Hills TX

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 86. Calm wind becoming east around 5 mph in the afternoon.

    High: 86 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. East wind around 5 mph becoming south after midnight.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 87. Light south southwest wind becoming south 5 to 10 mph in the morning.

    High: 87 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 63. South southeast wind 5 to 10 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. South southeast wind 5 to 10 mph.

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 90. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 89. South southeast wind 5 to 10 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 86. Calm wind becoming east around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 60. East wind around 5 mph becoming south after midnight.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 87. Light south southwest wind becoming south 5 to 10 mph in the morning.
Tuesday Night
Increasing clouds, with a low around 63. South southeast wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 89. South southeast wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 64. South southeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 90. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 63. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 89. South southeast wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 81.
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 98.51°W (Elev. 869 ft)
Last Update:
5:32 am CDT Mar 23, 2026
Forecast Valid:
5am CDT Mar 23, 2026-6pm CDT Mar 29, 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