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

49°F

9°C

Humidity 37%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 29 Mar 11:54 PM PDT
Extended Forecast for

13 Miles NNW Mount Wilson CA

  • Overnight

    Overnight: Increasing clouds, with a low around 54. South wind around 10 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 64. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 35 mph.

    High: 64 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 49. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 49 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after 11am. Cloudy, with a high near 56. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 56 °F

    Slight Chance
    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 44. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 54. Breezy.

    High: 54 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. Breezy.

    Low: 46 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54. Breezy.

    High: 54 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Breezy.

    Low: 44 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Overnight
Increasing clouds, with a low around 54. South wind around 10 mph.
Monday
Partly sunny, with a high near 64. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 35 mph.
Monday Night
Mostly cloudy, with a low around 49. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday
A 20 percent chance of rain after 11am. Cloudy, with a high near 56. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 44. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly sunny, with a high near 54. Breezy.
Wednesday Night
Partly cloudy, with a low around 46. Breezy.
Thursday
Mostly sunny, with a high near 54. Breezy.
Thursday Night
Partly cloudy, with a low around 44. Breezy.
Friday
Mostly sunny, with a high near 58. Breezy.
Friday Night
Partly cloudy, with a low around 51. Breezy.
Saturday
Mostly sunny, with a high near 64. Breezy.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...
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:
11:27 pm PDT Mar 29, 2026
Forecast Valid:
12am PDT Mar 30, 2026-6pm PDT Apr 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation