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.

Overcast

71°F

22°C

Humidity 79%
Wind Speed SE 15 mph
Barometer 29.98 in (1013.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 4 Mar 11:51 pm CST
Extended Forecast for

Castle Hills TX

  • Overnight

    Overnight: Cloudy, with a low around 68. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 68 °F

    Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 85. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 3am. Increasing clouds, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 68 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible 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 20%.

    High: 82 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 9am, then showers likely between 9am and noon, then showers and possibly a thunderstorm after noon. 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 59. North northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 59 °F

    T-storms

  • Sunday

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

    High: 71 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 63. East wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Cloudy, with a low around 68. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
A 20 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 85. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 20 percent chance of showers after 3am. Increasing clouds, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
A slight chance of showers, with thunderstorms also possible 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 20%.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday
Showers likely and possibly a thunderstorm before 9am, then showers likely between 9am and noon, then showers and possibly a thunderstorm after noon. 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 59. North northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Sunday
Showers and possibly a thunderstorm. High near 71. Northeast wind around 10 mph. Chance of precipitation is 80%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 63. East wind 5 to 10 mph. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 81. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 67.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Wednesday
A 20 percent chance of showers. Sunny, with a high near 78.
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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:
11:44 pm CST Mar 4, 2026
Forecast Valid:
12am CST Mar 5, 2026-6pm CDT Mar 11, 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