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.

Mostly Cloudy

69°F

21°C

Humidity 51%
Wind Speed N 8 mph
Barometer 30.24 in (1022.6 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 11 Feb 11:51 am CST
Extended Forecast for

Castle Hills TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 75. North northeast wind around 5 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 53. North northeast wind around 5 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 77 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. South southeast wind around 5 mph becoming calm after midnight.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 80. Light south southeast wind becoming southeast 5 to 10 mph in the morning.

    High: 80 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 64. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. South southeast wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Saturday Night

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

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 77. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 75. North northeast wind around 5 mph.
Tonight
Partly cloudy, with a low around 53. North northeast wind around 5 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 59. South southeast wind around 5 mph becoming calm after midnight.
Friday
Mostly cloudy, with a high near 80. Light south southeast wind becoming southeast 5 to 10 mph in the morning.
Friday Night
A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 64. South southeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. South southeast wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Saturday Night
Clear, with a low around 56. West northwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 77. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 49.
Washington's Birthday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Partly 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 98.53°W (Elev. 846 ft)
Last Update:
11:44 am CST Feb 11, 2026
Forecast Valid:
12pm CST Feb 11, 2026-6pm CST Feb 17, 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