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

78°F

26°C

Humidity 6%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint 6°F (-14°C)
Visibility NA
Heat Index76°F (24°C)
Last update 18 Apr 03:54 PM PDT
Extended Forecast for

12 Miles NNW Mount Wilson CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 67. North northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. West southwest wind 5 to 10 mph becoming south southeast after midnight. Winds could gust as high as 15 mph.

    Low: 52 °F

    Increasing
    Clouds

  • 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 25 mph.

    High: 64 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 46. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 46 °F

    Mostly 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 afternoon. 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 30 percent chance of rain after 11am. Mostly sunny, with a high near 54. Breezy.

    High: 54 °F

    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: Rain likely before 11pm. Mostly cloudy, with a low around 41. Breezy.

    Low: 41 °F

    Breezy. Rain
    Likely then
    Partly Cloudy

  • Wednesday

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

    High: 53 °F

    Mostly Sunny
    then Sunny
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 67. North northeast wind around 10 mph, with gusts as high as 15 mph.
Tonight
Increasing clouds, with a low around 52. West southwest wind 5 to 10 mph becoming south southeast after midnight. 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 25 mph.
Sunday Night
Mostly clear, with a low around 46. South wind 10 to 15 mph, with gusts as high as 25 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 afternoon. Winds could gust as high as 30 mph.
Monday Night
Mostly clear, with a low around 46. Breezy.
Tuesday
A 30 percent chance of rain after 11am. Mostly sunny, with a high near 54. Breezy.
Tuesday Night
Rain likely before 11pm. Mostly cloudy, with a low around 41. Breezy.
Wednesday
Mostly sunny, with a high near 53. Breezy.
Wednesday Night
Mostly clear, with a low around 43. Breezy.
Thursday
Sunny, with a high near 59.
Thursday Night
Mostly clear, with a low around 45. Breezy.
Friday
Sunny, with a high near 58. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNW Mount Wilson CA
 34.39°N 118.12°W (Elev. 5531 ft)
Last Update:
11:26 am PDT Apr 18, 2026
Forecast Valid:
4pm PDT Apr 18, 2026-6pm PDT Apr 24, 2026
 
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