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

86°F

30°C

Humidity 48%
Wind Speed SE 16 mph
Barometer 29.93 in (1011.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 14 Apr 3:51 pm CDT
Extended Forecast for

Castle Hills TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 69. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Cloudy then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 68. South southeast wind 5 to 10 mph.

    Low: 68 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 88. South southeast wind 5 to 10 mph.

    High: 88 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. South southeast wind around 10 mph.

    Low: 68 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 88. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 88 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 68. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 80. South southeast wind 5 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 55. North northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 69. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 68. South southeast wind 5 to 10 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 88. South southeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 68. South southeast wind around 10 mph.
Friday
Mostly cloudy, with a high near 88. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 68. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 80. South southeast wind 5 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 55. North northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Sunday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 71.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Monday
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 69.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
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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:
3:48 pm CDT Apr 14, 2026
Forecast Valid:
4pm CDT Apr 14, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation