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

58°F

14°C

Humidity 70%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 30 Apr 09:54 PM PDT
Extended Forecast for

10 Miles NNW Altadena CA

  • Tonight

    Tonight: Clear, with a low around 52. North wind 5 to 10 mph.

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 65. North wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51. Southwest wind 5 to 10 mph becoming northeast after midnight.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64. East wind 5 to 10 mph becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 45 °F

    Partly Cloudy

  • Sunday

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

    High: 54 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 10 percent chance of rain after 11pm. Partly cloudy, with a low around 44. Breezy.

    Low: 44 °F

    Slight Chance
    Rain and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 49. Breezy.

    High: 49 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43. Breezy.

    Low: 43 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Tonight
Clear, with a low around 52. North wind 5 to 10 mph.
Friday
Sunny, with a high near 65. North wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 51. Southwest wind 5 to 10 mph becoming northeast after midnight.
Saturday
Sunny, with a high near 64. East wind 5 to 10 mph becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 45. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 54. Breezy.
Sunday Night
A 10 percent chance of rain after 11pm. Partly cloudy, with a low around 44. Breezy.
Monday
Mostly sunny, with a high near 49. Breezy.
Monday Night
Partly cloudy, with a low around 43. Breezy.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Altadena CA
 34.33°N 118.22°W (Elev. 4711 ft)
Last Update:
8:51 pm PDT Apr 30, 2026
Forecast Valid:
10pm PDT Apr 30, 2026-6pm PDT May 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation