Current conditions at

ACTON (ATNC1)

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

NA

68°F

20°C

Humidity 87%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 64°F (18°C)
Visibility NA
Last update 07 Sep 09:54 AM PDT
Extended Forecast for

12 Miles NNW Altadena CA

  • Labor Day

    Labor Day: A 30 percent chance of rain and thunderstorms, mainly before 11am.  Mostly sunny, with a high near 72. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Chance Rain
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 69. Southwest wind around 5 mph becoming east after midnight.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers before 11am, then a slight chance of rain after 11am.  Mostly sunny, with a high near 78. East northeast wind 5 to 10 mph becoming west southwest in the morning.  Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73. Calm wind becoming northeast around 5 mph after midnight.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Northeast wind 5 to 10 mph becoming light and variable.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Labor Day
A 30 percent chance of rain and thunderstorms, mainly before 11am. Mostly sunny, with a high near 72. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly clear, with a low around 69. Southwest wind around 5 mph becoming east after midnight.
Tuesday
A slight chance of showers before 11am, then a slight chance of rain after 11am. Mostly sunny, with a high near 78. East northeast wind 5 to 10 mph becoming west southwest in the morning. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 73. Calm wind becoming northeast around 5 mph after midnight.
Wednesday
Sunny, with a high near 82. Northeast wind 5 to 10 mph becoming light and variable.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 75.
Friday Night
Clear, with a low around 63.
Saturday
Sunny, with a high near 71.
Saturday Night
Clear, with a low around 61.
Sunday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNW Altadena CA
 34.33°N 118.22°W (Elev. 4711 ft)
6:41 am PDT Sep 7, 2026
10am PDT Sep 7, 2026-6pm PDT Sep 13, 2026
 
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Additional Resources

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