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 23%
Wind Speed Calm
Barometer 30.15 in (1019.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 7 Feb 7:51 pm CST
Extended Forecast for

Castle Hills TX

  • Tonight

    Tonight: Partly cloudy, with a low around 51. South wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Partly Cloudy

  • Sunday

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

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54. South wind around 5 mph becoming calm after midnight.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 78. Light southwest wind becoming south 5 to 10 mph in the afternoon.

    High: 78 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 59. South southeast wind 5 to 10 mph.

    Low: 59 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 73. South wind 5 to 10 mph.

    High: 73 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Calm wind becoming south southwest around 5 mph.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. South wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 76. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 54. South wind around 5 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 78. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 59. South southeast wind 5 to 10 mph.
Tuesday
A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 73. South wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 83. Calm wind becoming south southwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 58. South southeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Partly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 73.
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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:
5:44 pm CST Feb 7, 2026
Forecast Valid:
8pm CST Feb 7, 2026-6pm CST Feb 14, 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