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

77°F

25°C

Humidity 36%
Wind Speed E 2 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index78°F (26°C)
Last update 25 Aug 10:54 PM PDT
Extended Forecast for

9 Miles NNW Altadena CA

Extreme Heat Warning August 25, 11:52pm until August 28, 08:00pm
Red Flag Warning August 25, 11:52pm until August 28, 03:00pm
Click here for hazard details and duration
Extreme Heat Warning
Red Flag Warning
  •  
    Extreme Heat Warning August 25, 11:52pm until August 28, 08:00pm
    Red Flag Warning August 25, 11:52pm until August 28, 03:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 70 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. North northeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 71. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.

    Low: 71 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 89. North northeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 15 mph.

    High: 89 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 71. West wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 15 mph.

    Low: 71 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 70. North wind around 5 mph.
Wednesday
Sunny, with a high near 90. North northeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Increasing clouds, with a low around 71. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.
Thursday
Partly sunny, with a high near 89. North northeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 71. West wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 15 mph.
Friday
Mostly sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 85.
Saturday Night
Clear, with a low around 66.
Sunday
Sunny, with a high near 81.
Sunday Night
Clear, with a low around 61.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Altadena CA
 34.31°N 118.19°W (Elev. 4052 ft)
Last Update:
11:26 pm PDT Aug 25, 2026
Forecast Valid:
11pm PDT Aug 25, 2026-6pm PDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation