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

41°F

5°C

Humidity 83%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 15 Apr 03:54 AM PDT
Extended Forecast for

13 Miles NNW Mount Wilson CA

  • Today

    Today: Sunny, with a high near 56. Breezy, with a west northwest wind 5 to 10 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 56 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 56. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 56 °F

    Decreasing
    Clouds and
    Breezy

  • Thursday Night

    Thursday Night: Clear, with a low around 41. Wind chill values as low as 30. Windy, with a west northwest wind 15 to 20 mph becoming north northeast 25 to 30 mph after midnight. Winds could gust as high as 45 mph.

    Low: 41 °F

    Clear and
    Windy

  • Friday

    Friday: Sunny, with a high near 55. Windy, with a northeast wind 30 to 35 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 55 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 62. Breezy.

    High: 62 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

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

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 63. Breezy.

    High: 63 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 56. Breezy, with a west northwest wind 5 to 10 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
Partly cloudy, with a low around 47. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 56. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Clear, with a low around 41. Wind chill values as low as 30. Windy, with a west northwest wind 15 to 20 mph becoming north northeast 25 to 30 mph after midnight. Winds could gust as high as 45 mph.
Friday
Sunny, with a high near 55. Windy, with a northeast wind 30 to 35 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 50 mph.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 62. Breezy.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 63. Breezy.
Sunday Night
Mostly clear, with a low around 45. Breezy.
Monday
Sunny, with a high near 58. Breezy.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 46. Breezy.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 54. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNW Mount Wilson CA
 34.38°N 118.18°W (Elev. 5915 ft)
Last Update:
3:27 am PDT Apr 15, 2026
Forecast Valid:
4am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
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