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

70°F

21°C

Humidity 87%
Wind Speed E 6 mph
Barometer 30.15 in (1019.3 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 10 Apr 11:51 pm CDT
Extended Forecast for

Castle Hills TX

  • Overnight

    Overnight: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 67. East southeast wind around 5 mph.

    Low: 67 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Patchy fog between 8am and 10am. Otherwise, mostly cloudy, with a high near 81. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 4pm, then showers and thunderstorms likely after 4pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 78. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely and
    Patchy Fog
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 7pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 69. South southeast wind around 10 mph. Chance of precipitation is 60%.

    Low: 69 °F

    T-storms
    Likely and
    Patchy Fog

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 81. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 81 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 82 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 68. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 67. East southeast wind around 5 mph.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Patchy fog between 8am and 10am. Otherwise, mostly cloudy, with a high near 81. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely and possibly a thunderstorm before 4pm, then showers and thunderstorms likely after 4pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 78. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely, mainly before 7pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 69. South southeast wind around 10 mph. Chance of precipitation is 60%.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 81. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 68. Southeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84.
Wednesday Night
Mostly cloudy, with a low around 68.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Thursday Night
Mostly cloudy, with a low around 68.
Friday
Partly sunny, with a high near 86.
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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:
11:33 pm CDT Apr 10, 2026
Forecast Valid:
12am CDT Apr 11, 2026-6pm CDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation