National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

ACTON (ATNC1)

Lat: 34.44639°NLon: 118.1968°WElev: 2600.0ft.

NA

53°F

12°C

Humidity 39%
Wind Speed SE 5 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 02 Dec 04:54 PM PST
Extended Forecast for

10 Miles NNW Altadena CA

Wind Advisory December 3, 06:00am until December 4, 03:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 38. West wind 5 to 10 mph.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 48. Wind chill values as low as 30 early. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 48 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. Wind chill values as low as 30. Windy, with a northeast wind 25 to 30 mph, with gusts as high as 40 mph.

    Low: 39 °F

    Mostly Clear
    and Windy

  • Thursday

    Thursday: Sunny, with a high near 49. Wind chill values as low as 30 early. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 49 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 38. West wind 5 to 10 mph.
Wednesday
Sunny, with a high near 48. Wind chill values as low as 30 early. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.
Wednesday Night
Mostly clear, with a low around 39. Wind chill values as low as 30. Windy, with a northeast wind 25 to 30 mph, with gusts as high as 40 mph.
Thursday
Sunny, with a high near 49. Wind chill values as low as 30 early. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 41. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 54.
Friday Night
Clear, with a low around 46.
Saturday
Sunny, with a high near 56.
Saturday Night
Clear, with a low around 46.
Sunday
Sunny, with a high near 57.
Sunday Night
Clear, with a low around 48.
Monday
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 50. Breezy.
Tuesday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Altadena CA
 34.33°N 118.22°W (Elev. 4711 ft)
Last Update:
2:26 pm PST Dec 2, 2025
Forecast Valid:
5pm PST Dec 2, 2025-6pm PST Dec 9, 2025
 
Forecast Discussion
 
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