National Weather Service Forecast for: Altadena CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 3:53 am PDT Apr 16, 2025
 
Today

Today: Patchy drizzle and fog before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 65. Southwest wind 5 to 10 mph.
Patchy
Drizzle and
Patchy Fog
then Mostly
Sunny
 Tonight

Tonight: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 49. West southwest wind 5 to 10 mph.
Slight Chance
Showers

 Thursday

Thursday: A 20 percent chance of showers. Partly sunny, with a high near 61. West southwest wind 5 to 10 mph becoming south in the morning.
Slight Chance
Showers

 Thursday
Night
Thursday Night: A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 49. Southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

 Friday

Friday: A 30 percent chance of showers. Mostly cloudy, with a high near 63. Calm wind becoming south southwest around 5 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

 Friday
Night
Friday Night: A 30 percent chance of showers before 11pm. Partly cloudy, with a low around 49.
Chance
Showers then
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 72.
Sunny


 Saturday
Night
Saturday Night: Mostly clear, with a low around 52.
Mostly Clear


 Sunday

Sunday: Sunny, with a high near 74.
Sunny
Hi 65 °F Lo 49 °F Hi 61 °F Lo 49 °F Hi 63 °F Lo 49 °F Hi 72 °F Lo 52 °F Hi 74 °F

 

Today
 
 Patchy drizzle and fog before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 65. Southwest wind 5 to 10 mph.
Tonight
 
 A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 49. West southwest wind 5 to 10 mph.
Thursday
 
 A 20 percent chance of showers. Partly sunny, with a high near 61. West southwest wind 5 to 10 mph becoming south in the morning.
Thursday Night
 
 A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 49. Southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
 
 A 30 percent chance of showers. Mostly cloudy, with a high near 63. Calm wind becoming south southwest around 5 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
 
 A 30 percent chance of showers before 11pm. Partly cloudy, with a low around 49.
Saturday
 
 Sunny, with a high near 72.
Saturday Night
 
 Mostly clear, with a low around 52.
Sunday
 
 Sunny, with a high near 74.
Sunday Night
 
 Mostly clear, with a low around 54.
Monday
 
 Sunny, with a high near 75.
Monday Night
 
 Mostly clear, with a low around 53.
Tuesday
 
 Sunny, with a high near 73.

 

Forecast from NOAA-NWS for Altadena CA.