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

53°F

12°C

Humidity 42%
Wind Speed NNE 2 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 18 Oct 02:54 AM PDT
Extended Forecast for

13 Miles NW Mount Wilson CA

  • Overnight

    Overnight: Mostly clear, with a low around 55. East northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55. North northeast wind 5 to 10 mph becoming south southeast in the evening.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66. East northeast wind 5 to 15 mph becoming southwest in the morning. Winds could gust as high as 20 mph.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 50. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 11pm. Partly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 54.

    High: 54 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 55. East northeast wind around 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 66. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 55. North northeast wind 5 to 10 mph becoming south southeast in the evening.
Monday
Sunny, with a high near 66. East northeast wind 5 to 15 mph becoming southwest in the morning. Winds could gust as high as 20 mph.
Monday Night
Clear, with a low around 50. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 60.
Tuesday Night
A 20 percent chance of showers after 11pm. Partly cloudy, with a low around 47.
Wednesday
A chance of showers. Partly sunny, with a high near 54.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 44.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 49.
Thursday Night
A chance of showers. Partly cloudy, with a low around 41.
Friday
Sunny, with a high near 51.
Friday Night
Clear, with a low around 42.
Saturday
Sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NW Mount Wilson CA
 34.38°N 118.18°W (Elev. 5915 ft)
Last Update:
12:46 am PDT Oct 18, 2026
Forecast Valid:
3am PDT Oct 18, 2026-6pm PDT Oct 24, 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