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

99°F

37°C

Humidity 12%
Wind Speed W 11 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Heat Index94°F (34°C)
Last update 17 Aug 01:54 PM PDT
Extended Forecast for

11 Miles NW Mount Wilson CA

Heat Advisory August 18, 10:00am until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 85. Southwest wind around 10 mph, with gusts as high as 15 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. Southwest wind 5 to 10 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 85. Southwest wind around 10 mph, with gusts as high as 15 mph.
Tonight
Mostly clear, with a low around 71. Southwest wind 5 to 10 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 86. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Partly cloudy, with a low around 70. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 88. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 73.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NW Mount Wilson CA
 34.34°N 118.17°W (Elev. 4672 ft)
Last Update:
11:26 am PDT Aug 17, 2026
Forecast Valid:
2pm PDT Aug 17, 2026-6pm PDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation