National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

ACTON (ATNC1)

Lat: 34.44639°NLon: 118.1968°WElev: 2600.0ft.

NA

60°F

16°C

Humidity 40%
Wind Speed WSW 7 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 13 Apr 11:54 AM PDT
Extended Forecast for

12 Miles NNW Mount Wilson CA

Winter Weather Advisory April 13, 12:58pm until April 13, 07:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory April 13, 12:58pm until April 13, 07:00pm

    NOW until 7:00pm Mon

    Winter Weather Advisory

  • This Afternoon

    High: 47 °F

    Showers
    Likely

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 37. Wind chill values as low as 30. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 37 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56. Northwest wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 44. West wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57. West southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 57 °F

    Sunny

  • Wednesday Night

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

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 57. Breezy.

    High: 57 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Clear, with a low around 43. Breezy.

    Low: 43 °F

    Mostly Clear
    and Breezy
    then Clear

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 47. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 37. Wind chill values as low as 30. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 56. Northwest wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Clear, with a low around 44. West wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 57. West southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 57. Breezy.
Thursday Night
Clear, with a low around 43. Breezy.
Friday
Sunny, with a high near 58. Breezy.
Friday Night
Mostly clear, with a low around 47.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Sunny, with a high near 62. 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:
11:43 am PDT Apr 13, 2026
Forecast Valid:
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation