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

66°F

19°C

Humidity 73%
Wind Speed S 15 mph
Barometer 30.07 in (1016.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 9 Feb 10:51 pm CST
Extended Forecast for

Castle Hills TX

  • Tonight

    Tonight: Increasing clouds, with a low around 57. South wind around 5 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Patchy fog between 7am and 10am. Otherwise, cloudy, with a high near 75. South wind around 5 mph.

    High: 75 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 58. East southeast wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 77 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58. East northeast wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.

    High: 81 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. South southeast wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 82. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 62. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Slight Chance
    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 57. South wind around 5 mph.
Tuesday
Patchy fog between 7am and 10am. Otherwise, cloudy, with a high near 75. South wind around 5 mph.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58. East southeast wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 77. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 58. East northeast wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 61. South southeast wind around 5 mph.
Friday
Mostly cloudy, with a high near 82. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 62. South southeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
A chance of showers and thunderstorms before noon, then a slight chance of showers. Mostly sunny, with a high near 78. Chance of precipitation is 40%.
Saturday Night
Clear, with a low around 51.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 48.
Washington's Birthday
Sunny, with a high near 79.
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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:
10:33 pm CST Feb 9, 2026
Forecast Valid:
11pm CST Feb 9, 2026-6pm CST Feb 16, 2026
 
Forecast Discussion
 
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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