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

53°F

12°C

Humidity 83%
Wind Speed NNW 2 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 18 Nov 06:55 PM PST
Extended Forecast for

Altadena CA

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers after 10am. Mostly sunny, with a high near 61. Calm wind.

    High: 61 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 45. Calm wind.

    Low: 45 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 30 percent chance of showers after 10am. Mostly cloudy, with a high near 57. East wind around 5 mph becoming south in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly before 4am. Low around 46. Southeast wind around 5 mph becoming east northeast after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Showers

  • Friday

    Friday: A 40 percent chance of showers, mainly before 10am. Mostly cloudy, with a high near 59.

    High: 59 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 44. Calm wind.
Wednesday
A 20 percent chance of showers after 10am. Mostly sunny, with a high near 61. Calm wind.
Wednesday Night
Increasing clouds, with a low around 45. Calm wind.
Thursday
A 30 percent chance of showers after 10am. Mostly cloudy, with a high near 57. East wind around 5 mph becoming south in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Showers, mainly before 4am. Low around 46. Southeast wind around 5 mph becoming east northeast after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A 40 percent chance of showers, mainly before 10am. Mostly cloudy, with a high near 59.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 69.
Sunday Night
Clear, with a low around 50.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altadena CA
 34.18°N 118.14°W (Elev. 1253 ft)
Last Update:
5:41 pm PST Nov 18, 2025
Forecast Valid:
7pm PST Nov 18, 2025-6pm PST Nov 25, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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