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.

Light Rain

65°F

18°C

Humidity 78%
Wind Speed N 15 G 25 mph
Barometer 29.89 in (1010.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 11 Mar 1:51 am CDT
Extended Forecast for

Castle Hills TX

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 64. North wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 10am. Mostly cloudy through mid morning, then gradual clearing, with a high near 84. North northeast wind 5 to 10 mph becoming west in the morning. Winds could gust as high as 20 mph.

    High: 84 °F

    Slight Chance
    T-storms then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. North wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69. North northeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44. East northeast wind around 5 mph becoming calm.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 79. South southwest wind 5 to 10 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 52. South wind around 5 mph.

    Low: 52 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. South southeast wind around 10 mph.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 64. North wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 20 percent chance of showers and thunderstorms before 10am. Mostly cloudy through mid morning, then gradual clearing, with a high near 84. North northeast wind 5 to 10 mph becoming west in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 47. North wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 69. North northeast wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 44. East northeast wind around 5 mph becoming calm.
Friday
Sunny, with a high near 79. South southwest wind 5 to 10 mph.
Friday Night
Clear, with a low around 52. South wind around 5 mph.
Saturday
Sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 60. South southeast wind around 10 mph.
Sunday
Partly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 66.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
Partly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.53°N 98.53°W (Elev. 846 ft)
Last Update:
1:46 am CDT Mar 11, 2026
Forecast Valid:
2am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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