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

85°F

29°C

Humidity 23%
Wind Speed N 3 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Heat Index82°F (28°C)
Last update 20 Mar 09:54 AM PDT
Extended Forecast for

13 Miles NNW Mount Wilson CA

Extreme Heat Warning March 20, 10:52am until March 20, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning March 20, 10:52am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Today

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 62. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 74. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 30 mph.

    High: 74 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. West southwest wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 74. Breezy, with a north wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 74 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 60. Breezy.

    Low: 60 °F

    Mostly Clear
    and Breezy
    then Clear

Detailed Forecast

Today
Sunny, with a high near 80. East southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
Clear, with a low around 62. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 74. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 58. West southwest wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 74. Breezy, with a north wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Clear, with a low around 60.
Monday
Sunny, with a high near 75.
Monday Night
Clear, with a low around 60. Breezy.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Clear, with a low around 60.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 56. Breezy.
Thursday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNW Mount Wilson CA
 34.38°N 118.18°W (Elev. 5915 ft)
Last Update:
12:41 am PDT Mar 20, 2026
Forecast Valid:
10am PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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