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

71°F

22°C

Humidity 76%
Wind Speed SE 16 mph
Barometer 29.91 in (1011.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 5 Mar 9:51 pm CST
Extended Forecast for

Castle Hills TX

  • Tonight

    Tonight: A 20 percent chance of showers after 3am. Cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 68 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 82. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, with thunderstorms also possible after 9pm. Increasing clouds, with a low around 68. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 82. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 82 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 60. North northeast wind around 10 mph. Chance of precipitation is 90%.

    Low: 60 °F

    T-storms then
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 71. Northeast wind 5 to 10 mph. Chance of precipitation is 80%.

    High: 71 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 63. Northeast wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 68. Southeast wind around 10 mph. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers after 3am. Cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 30 mph.
Friday
A chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 82. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers, with thunderstorms also possible after 9pm. Increasing clouds, with a low around 68. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.
Saturday
Showers and possibly a thunderstorm. High near 82. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 60. North northeast wind around 10 mph. Chance of precipitation is 90%.
Sunday
Showers and possibly a thunderstorm. High near 71. Northeast wind 5 to 10 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 63. Northeast wind 5 to 10 mph. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 68. Southeast wind around 10 mph. Chance of precipitation is 40%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 81.
Wednesday Night
A 20 percent chance of showers. Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.53°N 98.53°W (Elev. 846 ft)
Last Update:
10:32 pm CST Mar 5, 2026
Forecast Valid:
10pm CST Mar 5, 2026-6pm CDT Mar 12, 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