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

58°F

14°C

Humidity 67%
Wind Speed NNE 8 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 19 Mar 12:54 AM PDT
Extended Forecast for

13 Miles NNW Mount Wilson CA

Extreme Heat Warning March 19, 01:57am until March 20, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning March 19, 01:57am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Overnight

    Low: 67 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 81. North northeast wind 5 to 15 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 68. West southwest wind 5 to 10 mph becoming east in the evening.

    Low: 68 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 81. East southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 64. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 75. Breezy.

    High: 75 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 67. West wind around 5 mph becoming north.
Thursday
Sunny, with a high near 81. North northeast wind 5 to 15 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Clear, with a low around 68. West southwest wind 5 to 10 mph becoming east in the evening.
Friday
Sunny, with a high near 81. East southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Clear, with a low around 64. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 75. Breezy.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Sunny, with a high near 73.
Sunday Night
Clear, with a low around 63.
Monday
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 59. Breezy.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Clear, with a low around 58.
Wednesday
Sunny, with a high near 74.
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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:
12:37 am PDT Mar 19, 2026
Forecast Valid:
1am PDT Mar 19, 2026-6pm PDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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