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 44%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 13 Feb 05:54 PM PST
Extended Forecast for

9 Miles NNW Altadena CA

  • Tonight

    Tonight: Clear, with a low around 42. North wind 5 to 10 mph becoming southeast after midnight.

    Low: 42 °F

    Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 59. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 59 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41. South wind around 10 mph, with gusts as high as 15 mph.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 55. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 55 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 41. Breezy, with a south southeast wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Washington's Birthday

    Washington's Birthday: Showers and possibly a thunderstorm. High near 47. Windy. Chance of precipitation is 100%.

    High: 47 °F

    Showers and
    Windy

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 39. Windy. Chance of precipitation is 100%.

    Low: 39 °F

    Showers and
    Windy

  • Tuesday

    Tuesday: Showers. Cloudy, with a high near 46. Windy.

    High: 46 °F

    Showers and
    Windy

  • Tuesday Night

    Tuesday Night: Showers. Cloudy, with a low around 38. Breezy.

    Low: 38 °F

    Showers and
    Breezy

Detailed Forecast

Tonight
Clear, with a low around 42. North wind 5 to 10 mph becoming southeast after midnight.
Saturday
Increasing clouds, with a high near 59. South wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 41. South wind around 10 mph, with gusts as high as 15 mph.
Sunday
Partly sunny, with a high near 55. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Showers likely, mainly after 4am. Mostly cloudy, with a low around 41. Breezy, with a south southeast wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Washington's Birthday
Showers and possibly a thunderstorm. High near 47. Windy. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm. Low around 39. Windy. Chance of precipitation is 100%.
Tuesday
Showers. Cloudy, with a high near 46. Windy.
Tuesday Night
Showers. Cloudy, with a low around 38. Breezy.
Wednesday
Rain showers before 10am, then rain and snow showers likely. Mostly cloudy, with a high near 45. Breezy.
Wednesday Night
A chance of rain and snow showers. Partly cloudy, with a low around 34.
Thursday
A slight chance of rain and snow showers. Mostly sunny, with a high near 49.
Thursday Night
A slight chance of rain and snow showers. Mostly clear, with a low around 35.
Friday
Sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Altadena CA
 34.31°N 118.19°W (Elev. 4052 ft)
Last Update:
1:07 pm PST Feb 13, 2026
Forecast Valid:
6pm PST Feb 13, 2026-6pm PST Feb 20, 2026
 
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Additional Resources

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