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

78°F

26°C

Humidity 76%
Wind Speed SE 9 mph
Barometer 30.10 in (1017.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 11 Oct 9:51 am CDT
Extended Forecast for

Castle Hills TX

  • Today

    Today: Mostly sunny, with a high near 91. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 71. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: A 20 percent chance of showers after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 91. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 91 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A 10 percent chance of showers before 7pm. Increasing clouds, with a low around 76. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 94. South southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. Southeast wind around 10 mph.

    High: 89 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 91. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 71. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Columbus Day
A 20 percent chance of showers after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 91. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A 10 percent chance of showers before 7pm. Increasing clouds, with a low around 76. Southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 94. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 76. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. Southeast wind around 10 mph.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 68.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 81.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 75.
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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:
9:44 am CDT Oct 11, 2026
Forecast Valid:
10am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation