National Weather Service Forecast for: 3 Miles W Altadena CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 5:58 am PDT Mar 19, 2026
 
Today

Today: Sunny and hot, with a high near 98. South southwest wind 5 to 10 mph.
Hot
Tonight

Tonight: Clear, with a low around 67. Southwest wind around 5 mph becoming calm  after midnight.
Clear
Friday

Friday: Sunny and hot, with a high near 97. Light and variable wind becoming south southwest 5 to 10 mph in the morning.
Hot
Friday
Night
Friday Night: Clear, with a low around 64. South southwest wind 5 to 10 mph becoming light and variable  after midnight.
Clear
Saturday

Saturday: Sunny, with a high near 95. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Sunny
Saturday
Night
Saturday Night: Partly cloudy, with a low around 60.
Partly Cloudy
Sunday

Sunday: Mostly sunny, with a high near 89.
Mostly Sunny
Sunday
Night
Sunday Night: Clear, with a low around 65.
Clear
Monday

Monday: Sunny, with a high near 90.
Sunny
Hi 98 °F Lo 67 °F Hi 97 °F Lo 64 °F Hi 95 °F Lo 60 °F Hi 89 °F Lo 65 °F Hi 90 °F

Extreme Heat Warning
 

Today
 
Sunny and hot, with a high near 98. South southwest wind 5 to 10 mph.
Tonight
 
Clear, with a low around 67. Southwest wind around 5 mph becoming calm after midnight.
Friday
 
Sunny and hot, with a high near 97. Light and variable wind becoming south southwest 5 to 10 mph in the morning.
Friday Night
 
Clear, with a low around 64. South southwest wind 5 to 10 mph becoming light and variable after midnight.
Saturday
 
Sunny, with a high near 95. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
 
Partly cloudy, with a low around 60.
Sunday
 
Mostly sunny, with a high near 89.
Sunday Night
 
Clear, with a low around 65.
Monday
 
Sunny, with a high near 90.
Monday Night
 
Clear, with a low around 66.
Tuesday
 
Sunny, with a high near 90.
Tuesday Night
 
Clear, with a low around 65.
Wednesday
 
Sunny, with a high near 89.

 

Forecast from NOAA-NWS for 3 Miles W Altadena CA.