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

55°F

13°C

Humidity 72%
Wind Speed N 16 G 24 mph
Barometer 30.15 in (1019.6 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 2 May 7:51 am CDT
Extended Forecast for

Castle Hills TX

  • Today

    Today: Sunny, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. East northeast wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. South southeast wind around 5 mph.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 68. South wind around 10 mph.

    Low: 68 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 89. South wind around 10 mph, with gusts as high as 20 mph.

    High: 89 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly 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
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 89. South wind around 5 mph becoming northwest in the afternoon.

    High: 89 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 53. East northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 78. Calm wind becoming south southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 59. South southeast wind around 5 mph.
Monday
Partly sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 68. South wind around 10 mph.
Tuesday
Mostly cloudy, with a high near 89. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 73. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 89. South wind around 5 mph becoming northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
A 20 percent chance of showers. Mostly cloudy, with a high near 77.
Thursday Night
Mostly cloudy, with a low around 59.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
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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:
6:44 am CDT May 2, 2026
Forecast Valid:
8am CDT May 2, 2026-6pm CDT May 8, 2026
 
Forecast Discussion
 
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Additional Resources

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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