Current conditions at

ACTON (ATNC1)

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

NA

57°F

14°C

Humidity 44%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 20 Mar 05:54 AM PDT
Extended Forecast for

9 Miles NNW Altadena CA

Extreme Heat Warning March 20, 06:28am until March 20, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning March 20, 06:28am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Today

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 58. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 81 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. West southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81. North wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

Detailed Forecast

Today
Sunny, with a high near 88. East northeast wind 5 to 15 mph becoming south southwest in the morning. Winds could gust as high as 20 mph.
Tonight
Clear, with a low around 58. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 81. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 55. West southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 81. North wind 5 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Clear, with a low around 57.
Monday
Sunny, with a high near 85.
Monday Night
Clear, with a low around 56.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Clear, with a low around 58.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Altadena CA
 34.31°N 118.19°W (Elev. 4052 ft)
12:41 am PDT Mar 20, 2026
6am PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database