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

LOS ANGELES DOWNTOWN (FHMC1)

Lat: 34.06778°NLon: 118.24167°WElev: 413.0ft.

NA

65°F

18°C

Humidity 78%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 59°F (15°C)
Visibility NA
Last update 31 Mar 08:40 AM PDT
Extended Forecast for

Altadena CA

  • Today

    Today: A 20 percent chance of rain after 11am. Patchy fog before 11am. Otherwise, cloudy, with a high near 71. South wind 5 to 10 mph becoming west in the afternoon.

    High: 71 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 54. West wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Light west wind becoming southwest 5 to 10 mph in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Southwest wind 5 to 10 mph becoming light south in the evening. Winds could gust as high as 15 mph.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 71. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of rain after 11am. Patchy fog before 11am. Otherwise, cloudy, with a high near 71. South wind 5 to 10 mph becoming west in the afternoon.
Tonight
Rain likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 54. West wind 5 to 10 mph becoming light in the evening. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly sunny, with a high near 71. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 55. Southwest wind 5 to 10 mph becoming light south in the evening. Winds could gust as high as 15 mph.
Thursday
Mostly sunny, with a high near 71. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altadena CA
 34.18°N 118.14°W (Elev. 1253 ft)
Last Update:
12:41 am PDT Mar 31, 2026
Forecast Valid:
8am PDT Mar 31, 2026-6pm PDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation