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

44°F

7°C

Humidity 81%
Wind Speed NNE 6 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 16 Apr 01:54 AM PDT
Extended Forecast for

9 Miles NNW Altadena CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 44. Northwest wind around 5 mph.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 62. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 62 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. Wind chill values as low as 30. Breezy, with a west northwest wind 15 to 20 mph becoming northeast 20 to 25 mph after midnight. Winds could gust as high as 35 mph.

    Low: 38 °F

    Mostly Clear
    then Clear
    and Breezy

  • Friday

    Friday: Sunny, with a high near 63. Wind chill values as low as 25 early. Windy, with a northeast wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 63 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. North northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 44. Northwest wind around 5 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 62. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 38. Wind chill values as low as 30. Breezy, with a west northwest wind 15 to 20 mph becoming northeast 20 to 25 mph after midnight. Winds could gust as high as 35 mph.
Friday
Sunny, with a high near 63. Wind chill values as low as 25 early. Windy, with a northeast wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.
Friday Night
Mostly clear, with a low around 43. North northeast wind around 10 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 63. Breezy.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 44. Breezy.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 59. Breezy.
Tuesday Night
Partly cloudy, with a low around 42. Breezy.
Wednesday
Mostly sunny, with a high near 61.
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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:
1:02 am PDT Apr 16, 2026
Forecast Valid:
2am PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
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