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.

Overcast

64°F

18°C

Humidity 84%
Wind Speed Calm
Barometer 30.12 in (1018.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 11 Feb 1:51 am CST
Extended Forecast for

Castle Hills TX

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 58. North wind around 5 mph.

    Low: 58 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 76. North wind 5 to 10 mph.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. East northeast wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 78. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 78 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 61. South southeast wind around 5 mph becoming calm after midnight.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 81. Light south southeast wind becoming southeast 5 to 10 mph in the morning.

    High: 81 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 64. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before noon, then showers likely. High near 81. South southeast wind around 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight. Mostly clear, with a low around 55. West northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Slight Chance
    Showers then
    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 58. North wind around 5 mph.
Wednesday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 76. North wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 55. East northeast wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 78. Calm wind becoming south southeast around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 61. South southeast wind around 5 mph becoming calm after midnight.
Friday
Mostly cloudy, with a high near 81. Light south southeast wind becoming southeast 5 to 10 mph in the morning.
Friday Night
A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 64. Southeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
Showers and possibly a thunderstorm before noon, then showers likely. High near 81. South southeast wind around 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Saturday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 55. West northwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 76.
Sunday Night
Clear, with a low around 49.
Washington's Birthday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castle Hills TX
 29.5°N 98.53°W (Elev. 810 ft)
Last Update:
2:32 am CST Feb 11, 2026
Forecast Valid:
2am CST Feb 11, 2026-6pm CST Feb 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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