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

79°F

26°C

Humidity 45%
Wind Speed SE 3 MPH
Barometer NA
Dewpoint 56°F (13°C)
Visibility NA
Heat Index80°F (27°C)
Last update 19 Apr 02:25 PM PDT
Extended Forecast for

Altadena CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. South southwest wind around 10 mph, with gusts as high as 15 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. South southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers between 11am and 2pm, then a chance of rain after 2pm. Mostly sunny, with a high near 69. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 79. South southwest wind around 10 mph, with gusts as high as 15 mph.
Tonight
Mostly clear, with a low around 54. South southwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 76. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 52. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
A chance of showers between 11am and 2pm, then a chance of rain after 2pm. Mostly sunny, with a high near 69. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Partly sunny, with a high near 70.
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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 pm PDT Apr 19, 2026
Forecast Valid:
2pm PDT Apr 19, 2026-6pm PDT Apr 25, 2026
 
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Additional Resources

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Chance of Precipitation