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

53°F

12°C

Humidity 63%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 28 Mar 10:54 PM PDT
Extended Forecast for

9 Miles NNW Altadena CA

  • Tonight

    Tonight: Clear, with a low around 56. East wind around 10 mph.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 79. South southeast wind 5 to 10 mph becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 52. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. Southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46. South wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 63. Breezy.

    High: 63 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. Breezy.

    Low: 46 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Tonight
Clear, with a low around 56. East wind around 10 mph.
Sunday
Sunny, with a high near 79. South southeast wind 5 to 10 mph becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Clear, with a low around 52. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 72. Southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 46. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly cloudy, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
Partly sunny, with a high near 63. Breezy.
Wednesday Night
Partly cloudy, with a low around 46. Breezy.
Thursday
Mostly sunny, with a high near 63. Breezy.
Thursday Night
Partly cloudy, with a low around 44. Breezy.
Friday
Sunny, with a high near 65. Breezy.
Friday Night
Clear, with a low around 47.
Saturday
Sunny, with a high near 70. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Altadena CA
 34.31°N 118.19°W (Elev. 4052 ft)
Last Update:
11:27 am PDT Mar 28, 2026
Forecast Valid:
11pm PDT Mar 28, 2026-6pm PDT Apr 4, 2026
 
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