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

63°F

17°C

Humidity 30%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 15 Mar 09:54 PM PDT
Extended Forecast for

12 Miles NNW Mount Wilson CA

Heat Advisory March 16, 10:00am until March 17, 10:00am
Extreme Heat Warning March 17, 10:00am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning

  • Tonight

    Tonight: Clear, with a low around 65. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 69. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73. North northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 74.

    Low: 74 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 65. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 73. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Clear, with a low around 69. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 79. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 73. North northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Clear, with a low around 74.
Thursday
Sunny, with a high near 83.
Thursday Night
Clear, with a low around 75.
Friday
Sunny, with a high near 83.
Friday Night
Clear, with a low around 73.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 70. Breezy.
Sunday
Sunny, with a high near 76. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNW Mount Wilson CA
 34.39°N 118.12°W (Elev. 5531 ft)
Last Update:
2:21 pm PDT Mar 15, 2026
Forecast Valid:
10pm PDT Mar 15, 2026-6pm PDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation