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

88°F

31°C

Humidity 15%
Wind Speed NNE 10 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Heat Index84°F (29°C)
Last update 19 Mar 12:54 PM PDT
Extended Forecast for

13 Miles NNW Mount Wilson CA

Extreme Heat Warning March 19, 01:29pm until March 20, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning March 19, 01:29pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • This Afternoon

    High: 80 °F

    Sunny

  • Tonight

    Tonight: 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 80. East southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °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 80. 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: 80 °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

  • Sunday Night

    Sunday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 80. North wind around 5 mph becoming south southeast.
Tonight
Clear, with a low around 68. West southwest wind 5 to 10 mph becoming east in the evening.
Friday
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 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 80. 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 60.
Sunday
Sunny, with a high near 73.
Sunday Night
Clear, with a low around 63.
Monday
Sunny, with a high near 76.
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 75.
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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:
5:58 am PDT Mar 19, 2026
Forecast Valid:
1pm PDT Mar 19, 2026-6pm PDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation