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

64°F

18°C

Humidity 40%
Wind Speed NE 13 G 24 mph
Barometer 30.30 in (1025.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 Apr 12:51 pm CDT
Extended Forecast for

Castle Hills TX

  • This Afternoon

    This Afternoon: A 30 percent chance of showers, mainly after 4pm. Cloudy, with a high near 66. East northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 1am. Cloudy, with a low around 55. East northeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 63. East northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 63 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 58. East wind 5 to 10 mph. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 71. East wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 65. East wind 5 to 10 mph.

    Low: 65 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southeast wind around 5 mph.

    High: 81 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 67. South southeast wind around 10 mph.

    Low: 67 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 84. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 30 percent chance of showers, mainly after 4pm. Cloudy, with a high near 66. East northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
A chance of showers, with thunderstorms also possible after 1am. Cloudy, with a low around 55. East northeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 63. East northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 58. East wind 5 to 10 mph. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 71. East wind 5 to 10 mph. Chance of precipitation is 70%.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 65. East wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southeast wind around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 67. South southeast wind around 10 mph.
Thursday
Mostly cloudy, with a high near 84. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 69.
Friday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88.
Friday Night
Mostly cloudy, with a low around 69.
Saturday
Mostly cloudy, with a high near 87.
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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:
1:24 pm CDT Apr 19, 2026
Forecast Valid:
1pm CDT Apr 19, 2026-6pm CDT Apr 25, 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