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

66°F

19°C

Humidity 87%
Wind Speed Calm
Barometer 29.88 in (1010.1 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 18 Feb 4:51 am CST
Extended Forecast for

Castle Hills TX

  • Today

    Today: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 81. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 62. South southeast wind around 5 mph.

    Low: 62 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. South wind around 5 mph becoming north in the morning.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. East wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 81. Northeast wind around 5 mph becoming east southeast in the afternoon.

    High: 81 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. East southeast wind around 5 mph becoming north after midnight.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 81. Calm wind becoming south southeast around 5 mph in the afternoon.
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 62. South southeast wind around 5 mph.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 84. South wind around 5 mph becoming north in the morning.
Thursday Night
Partly cloudy, with a low around 61. East wind around 5 mph.
Friday
Partly sunny, with a high near 81. Northeast wind around 5 mph becoming east southeast in the afternoon.
Friday Night
Mostly cloudy, with a low around 61. East southeast wind around 5 mph becoming north after midnight.
Saturday
Mostly sunny, with a high near 78. North wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 45. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 66. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Mostly sunny, with a high near 72.
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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:
4:32 am CST Feb 18, 2026
Forecast Valid:
5am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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