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

ACTON (ATNC1)

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

NA

48°F

9°C

Humidity 72%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 29 Apr 11:54 PM PDT
Extended Forecast for

9 Miles NNW Altadena CA

  • Overnight

    Overnight: Mostly clear, with a low around 44. North wind around 5 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69. North wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 48. West northwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.

    Low: 48 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 71. North northeast wind 5 to 10 mph becoming west southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49. West wind 5 to 10 mph becoming south southeast after midnight. Winds could gust as high as 15 mph.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Breezy.

    Low: 42 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 44. North wind around 5 mph.
Thursday
Sunny, with a high near 69. North wind 5 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Clear, with a low around 48. West northwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.
Friday
Sunny, with a high near 71. North northeast wind 5 to 10 mph becoming west southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 49. West wind 5 to 10 mph becoming south southeast after midnight. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 42. Breezy.
Monday
Mostly sunny, with a high near 54. Breezy.
Monday Night
Partly cloudy, with a low around 40. Breezy.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Altadena CA
 34.31°N 118.19°W (Elev. 4052 ft)
Last Update:
11:31 pm PDT Apr 29, 2026
Forecast Valid:
12am PDT Apr 30, 2026-6pm PDT May 6, 2026
 
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Additional Resources

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