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

46°F

8°C

Humidity 73%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 13 Apr 12:54 AM PDT
Extended Forecast for

13 Miles NNW Mount Wilson CA

Winter Weather Advisory April 13, 01:13am until April 13, 07:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory April 13, 01:13am until April 13, 07:00pm

    NOW until 7:00pm Mon

    Winter Weather Advisory

  • Overnight

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of snow showers after 11am. Mostly sunny, with a high near 45. Wind chill values as low as 30 early. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.

    High: 45 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 38. West wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 54. North wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 43. Southwest wind 5 to 10 mph becoming northwest in the evening.

    Low: 43 °F

    Clear

  • Wednesday

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

    High: 56 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

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

    Low: 47 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Thursday

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

    High: 54 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. Wind chill values as low as 30. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A 30 percent chance of snow showers after 11am. Mostly sunny, with a high near 45. Wind chill values as low as 30 early. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 38. West wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 54. North wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Clear, with a low around 43. Southwest wind 5 to 10 mph becoming northwest in the evening.
Wednesday
Mostly sunny, with a high near 56. Breezy.
Wednesday Night
Mostly cloudy, with a low around 47. Breezy.
Thursday
Mostly sunny, with a high near 54. Breezy.
Thursday Night
Mostly clear, with a low around 43. Breezy.
Friday
Sunny, with a high near 57. Breezy.
Friday Night
Mostly clear, with a low around 47.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 63.
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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:
12:21 am PDT Apr 13, 2026
Forecast Valid:
1am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation