National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

CHILAO (CHOC1)

Lat: 34.33167°NLon: 118.03028°WElev: 5450.0ft.

NA

91°F

33°C

Humidity 15%
Wind Speed SSE 12 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Heat Index87°F (31°C)
Last update 26 Aug 01:53 PM PDT
Extended Forecast for

Altadena CA

Extreme Heat Warning August 26, 02:01pm until August 28, 08:00pm
Red Flag Warning August 26, 02:01pm until August 28, 03:00pm
Click here for hazard details and duration
Extreme Heat Warning
Red Flag Warning
  •  
    Extreme Heat Warning August 26, 02:01pm until August 28, 08:00pm
    Red Flag Warning August 26, 02:01pm until August 28, 03:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 77. Southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 77 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85. North northeast wind around 5 mph becoming southwest in the morning.

    High: 85 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 78. West southwest wind around 5 mph becoming north northeast after midnight.

    Low: 78 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 70.

    Low: 70 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 86. Southwest wind around 10 mph.
Tonight
Increasing clouds, with a low around 77. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85. North northeast wind around 5 mph becoming southwest in the morning.
Thursday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 78. West southwest wind around 5 mph becoming north northeast after midnight.
Friday
Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny, with a high near 83.
Saturday Night
Clear, with a low around 70.
Sunday
Sunny, with a high near 80.
Sunday Night
Clear, with a low around 64.
Monday
Sunny, with a high near 76.
Monday Night
A slight chance of showers. Mostly clear, with a low around 64.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altadena CA
 34.21°N 118.11°W (Elev. 2999 ft)
Last Update:
11:26 am PDT Aug 26, 2026
Forecast Valid:
2pm PDT Aug 26, 2026-6pm PDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation