National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

ACTON (ATNC1)

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

NA

47°F

8°C

Humidity 72%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 17 Apr 01:54 AM PDT
Extended Forecast for

9 Miles NNW Altadena CA

Wind Advisory April 17, 04:00am until April 17, 02:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Clear, with a low around 38. Wind chill values as low as 30. Breezy, with a northeast wind around 25 mph, with gusts as high as 35 mph.

    Low: 38 °F

    Clear and
    Breezy

  • Friday

    Friday: Sunny, with a high near 63. Wind chill values as low as 30 early. Windy, with a northeast wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 63 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Clear, with a low around 43. Northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 43 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 72. Northeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph becoming east northeast after midnight. Winds could gust as high as 15 mph.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 38. Wind chill values as low as 30. Breezy, with a northeast wind around 25 mph, with gusts as high as 35 mph.
Friday
Sunny, with a high near 63. Wind chill values as low as 30 early. Windy, with a northeast wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.
Friday Night
Clear, with a low around 43. Northeast wind around 10 mph, with gusts as high as 15 mph.
Saturday
Sunny, with a high near 72. Northeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph becoming east northeast after midnight. Winds could gust as high as 15 mph.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 44.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 60. Breezy.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 42. Breezy.
Wednesday
Mostly sunny, with a high near 59. Breezy.
Wednesday Night
Partly cloudy, with a low around 42. Breezy.
Thursday
Sunny, with a high near 63.
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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:
2:06 am PDT Apr 17, 2026
Forecast Valid:
2am PDT Apr 17, 2026-6pm PDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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