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.

A Few Clouds

87°F

31°C

Humidity 53%
Wind Speed SE 9 G 17 mph
Barometer 29.97 in (1013.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 23 May 12:51 pm CDT
Extended Forecast for

Castle Hills TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 96. South southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 75. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 104. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 76. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 96. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 96 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Slight Chance
    T-storms

  • Memorial Day

    Memorial Day: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South wind around 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73. East southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. East southeast wind 5 to 10 mph.

    High: 92 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 96. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 75. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 104. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 76. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 96. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Memorial Day
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73. East southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. East southeast wind 5 to 10 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, 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 98.53°W (Elev. 846 ft)
Last Update:
12:47 pm CDT May 23, 2025
Forecast Valid:
1pm CDT May 23, 2025-6pm CDT May 29, 2025
 
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