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Hazardous Weather Conditions

Current conditions at

ACTON (ATNC1)

Lat: 34.44639°NLon: 118.1968°WElev: 2600.0ft.

NA

99°F

37°C

Humidity 15%
Wind Speed SW 14 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Heat Index95°F (35°C)
Last update 22 Aug 04:54 PM PDT
Extended Forecast for

9 Miles NNW Altadena CA

Extreme Heat Watch August 25, 10:00am until August 28, 08:00pm
Heat Advisory August 23, 10:00am until August 25, 10:00am
Click here for hazard details and duration
Extreme Heat Watch
Heat Advisory

  • Tonight

    Tonight: Clear, with a low around 64. South southwest wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.

    Low: 64 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 91. East southeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. South southwest wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90. East wind 5 to 15 mph becoming southwest in the morning. Winds could gust as high as 20 mph.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 64. South southwest wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.
Sunday
Sunny, with a high near 91. East southeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Mostly clear, with a low around 64. South southwest wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.
Monday
Sunny, with a high near 90. East wind 5 to 15 mph becoming southwest in the morning. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 71.
Friday
Sunny, with a high near 93.
Friday Night
Mostly clear, with a low around 70.
Saturday
Sunny, with a high near 91.
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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:
2:31 pm PDT Aug 22, 2026
Forecast Valid:
5pm PDT Aug 22, 2026-6pm PDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation