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.

Partly Cloudy

82°F

28°C

Humidity 46%
Wind Speed N 9 mph
Barometer 30.07 in (1016.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 11 May 5:51 pm CDT
Extended Forecast for

Castle Hills TX

  • Tonight

    Tonight: Mostly clear, with a low around 64. Northeast wind 5 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. Northeast wind around 5 mph.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. East southeast wind around 5 mph becoming calm after midnight.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. East southeast wind around 5 mph becoming south after midnight.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 90. Light south southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 91. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 64. Northeast wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 85. Northeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 66. East southeast wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 89. Calm wind becoming south southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 67. East southeast wind around 5 mph becoming south after midnight.
Thursday
Mostly sunny, with a high near 90. Light south southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 70. South southeast wind around 10 mph, with gusts as high as 20 mph.
Friday
Mostly cloudy, with a high near 91. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 73. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 90.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Monday
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.53°N 98.51°W (Elev. 869 ft)
Last Update:
5:32 pm CDT May 11, 2026
Forecast Valid:
6pm CDT May 11, 2026-6pm CDT May 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation