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

40°F

4°C

Humidity 99%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 02 Jan 05:54 AM PST
Extended Forecast for

12 Miles NNW Mount Wilson CA

  • Today

    Today: A 40 percent chance of rain, mainly after 10am. Partly sunny, with a high near 51. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Chance Rain

  • Tonight

    Tonight: Rain likely, mainly after 10pm. Cloudy, with a low around 45. South wind 5 to 10 mph increasing to 10 to 15 mph in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 49. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 49 °F

    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Rain before 10pm, then a chance of showers between 10pm and 4am, then a chance of rain after 4am. Low around 44. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain then
    Chance
    Showers

  • Sunday

    Sunday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 50. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain Likely
    and Breezy

  • Sunday Night

    Sunday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.

    Low: 43 °F

    Rain Likely

  • Monday

    Monday: A 30 percent chance of rain, mainly between 10am and 4pm. Partly sunny, with a high near 47.

    High: 47 °F

    Chance Rain

  • Monday Night

    Monday Night: A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain, mainly before 4pm. Partly sunny, with a high near 46.

    High: 46 °F

    Chance Rain

Detailed Forecast

Today
A 40 percent chance of rain, mainly after 10am. Partly sunny, with a high near 51. South wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain likely, mainly after 10pm. Cloudy, with a low around 45. South wind 5 to 10 mph increasing to 10 to 15 mph in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 49. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain before 10pm, then a chance of showers between 10pm and 4am, then a chance of rain after 4am. Low around 44. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 50. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Monday
A 30 percent chance of rain, mainly between 10am and 4pm. Partly sunny, with a high near 47.
Monday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 41.
Tuesday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 46.
Tuesday Night
A slight chance of rain before 10pm. Partly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 38.
Thursday
A slight chance of snow. Mostly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
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:
6:07 am PST Jan 2, 2026
Forecast Valid:
6am PST Jan 2, 2026-6pm PST Jan 8, 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