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 92%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 04 Sep 05:54 AM PDT
Extended Forecast for

12 Miles NNW Mount Wilson CA

  • Today

    Today: Sunny, with a high near 71. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 71 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 57. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 57 °F

    Mostly Clear
    and Breezy
    then Clear

  • Saturday

    Saturday: Sunny, with a high near 74. 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: 74 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 11pm. Partly cloudy, with a low around 61. Breezy, with a south southeast wind 15 to 20 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 30 mph.

    Low: 61 °F

    Slight Chance
    Showers and
    Breezy

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 72. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers after 11am. Mostly sunny, with a high near 78.

    High: 78 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 71. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 57. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 74. 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.
Saturday Night
A 20 percent chance of showers after 11pm. Partly cloudy, with a low around 61. Breezy, with a south southeast wind 15 to 20 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 30 mph.
Sunday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 72. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 60.
Labor Day
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 63.
Tuesday
A slight chance of showers after 11am. Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
A slight chance of showers. Sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNW Mount Wilson CA
 34.39°N 118.15°W (Elev. 5312 ft)
Last Update:
3:52 am PDT Sep 4, 2026
Forecast Valid:
6am PDT Sep 4, 2026-6pm PDT Sep 10, 2026
 
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