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

55°F

13°C

Humidity 10%
Wind Speed NNE 11 MPH
Barometer NA
Dewpoint -1°F (-18°C)
Visibility NA
Last update 18 Apr 07:54 AM PDT
Extended Forecast for

12 Miles NNW Mount Wilson CA

  • Today

    Today: Mostly sunny, with a high near 67. Breezy, with a northeast wind 20 to 25 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 67 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. West southwest wind 5 to 10 mph becoming south southeast in the evening. Winds could gust as high as 15 mph.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 64. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 64 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 47 °F

    Mostly Clear
    and Breezy
    then Clear

  • Monday

    Monday: Sunny, with a high near 63. Breezy, with a south southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 30 mph.

    High: 63 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. Breezy.

    Low: 46 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: A 20 percent chance of rain. Mostly sunny, with a high near 54. Breezy.

    High: 54 °F

    Slight Chance
    Rain and
    Breezy

  • Tuesday Night

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

    Low: 42 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53. Breezy.

    High: 53 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 67. Breezy, with a northeast wind 20 to 25 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.
Tonight
Mostly cloudy, with a low around 51. West southwest wind 5 to 10 mph becoming south southeast in the evening. Winds could gust as high as 15 mph.
Sunday
Mostly sunny, with a high near 64. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Mostly clear, with a low around 47. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 63. Breezy, with a south southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 30 mph.
Monday Night
Mostly clear, with a low around 46. Breezy.
Tuesday
A 20 percent chance of rain. Mostly sunny, with a high near 54. Breezy.
Tuesday Night
Partly cloudy, with a low around 42. Breezy.
Wednesday
Mostly sunny, with a high near 53. Breezy.
Wednesday Night
Mostly clear, with a low around 42. Breezy.
Thursday
Sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 46. Breezy.
Friday
Sunny, with a high near 58. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNW Mount Wilson CA
 34.39°N 118.12°W (Elev. 5531 ft)
Last Update:
1:01 am PDT Apr 18, 2026
Forecast Valid:
8am PDT Apr 18, 2026-6pm PDT Apr 24, 2026
 
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