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

52°F

11°C

Humidity 50%
Wind Speed NNE 6 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 19 Oct 01:54 AM PDT
Extended Forecast for

12 Miles NW Mount Wilson CA

  • Overnight

    Overnight: Clear, with a low around 55. East wind around 5 mph.

    Low: 55 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 66. East northeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. South wind around 10 mph.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers likely, mainly after 11am. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 44. Chance of precipitation is 90%.

    Low: 44 °F

    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 48.

    High: 48 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 55. East wind around 5 mph.
Monday
Sunny, with a high near 66. East northeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 50. South wind around 10 mph.
Tuesday
Sunny, with a high near 60. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 47. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 44. Chance of precipitation is 90%.
Thursday
A chance of showers. Partly sunny, with a high near 48.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 52.
Friday Night
Clear, with a low around 44.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NW Mount Wilson CA
 34.38°N 118.18°W (Elev. 5915 ft)
Last Update:
11:26 pm PDT Oct 18, 2026
Forecast Valid:
2am PDT Oct 19, 2026-6pm PDT Oct 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation