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

84°F

29°C

Humidity 7%
Wind Speed SSW 10 MPH
Barometer NA
Dewpoint 14°F (-10°C)
Visibility NA
Heat Index81°F (27°C)
Last update 29 Mar 04:54 PM PDT
Extended Forecast for

13 Miles NNW Mount Wilson CA

  • Tonight

    Tonight: Clear, with a low around 55. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 63. Breezy, with a 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: Clear, with a low around 52. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.

    Low: 52 °F

    Clear and
    Breezy then
    Clear

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, increasing clouds, with a high near 58. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 58 °F

    Patchy Fog
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 48. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 57. Breezy.

    High: 57 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. Breezy.

    Low: 47 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 56. Breezy.

    High: 56 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43. Breezy.

    Low: 43 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Tonight
Clear, with a low around 55. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 63. Breezy, with a 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
Clear, with a low around 52. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.
Tuesday
Patchy fog before 11am. Otherwise, increasing clouds, with a high near 58. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 48. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 57. Breezy.
Wednesday Night
Partly cloudy, with a low around 47. Breezy.
Thursday
Mostly sunny, with a high near 56. Breezy.
Thursday Night
Mostly clear, with a low around 43. Breezy.
Friday
Sunny, with a high near 56. Breezy.
Friday Night
Mostly clear, with a low around 48. Breezy.
Saturday
Sunny, with a high near 61. Breezy.
Saturday Night
Clear, with a low around 50.
Sunday
Sunny, with a high near 67. Breezy.
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 am PDT Mar 29, 2026
Forecast Valid:
5pm PDT Mar 29, 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