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

87°F

31°C

Humidity 40%
Wind Speed SE 14 G 21 mph
Barometer 29.93 in (1011.6 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 31 Mar 3:51 pm CDT
Extended Forecast for

3 Miles WNW Castle Hills TX

  • Tonight

    Tonight: Increasing clouds, with a low around 67. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 67 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 90. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 90 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 67. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Mostly cloudy, with a high near 87. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 77. South southeast wind 10 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    High: 77 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Cloudy, with a low around 52. North northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 67. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 90. 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. Increasing clouds, with a low around 67. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly cloudy, with a high near 87. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 77. South southeast wind 10 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms. Cloudy, with a low around 52. North northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Sunday
A 40 percent chance of showers. Cloudy, with a high near 66.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 50.
Monday
Partly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Castle Hills TX
 29.55°N 98.56°W (Elev. 919 ft)
Last Update:
2:46 pm CDT Mar 31, 2026
Forecast Valid:
4pm CDT Mar 31, 2026-6pm CDT Apr 7, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation