National Weather Service Forecast for: 3 Miles W Altadena CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 11:31 pm PDT Jun 21, 2026
 
Overnight

Overnight: Mostly clear, with a low around 58. Southwest wind around 5 mph.
Mostly Clear
 Monday

Monday: Sunny, with a high near 83. South southwest wind 5 to 10 mph.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 60. South southwest wind around 5 mph becoming calm in the evening.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 63. South southwest wind around 5 mph becoming calm in the evening.
Mostly Clear
 Wednesday

Wednesday: Mostly sunny, with a high near 90.
Mostly Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 62.
Mostly Clear
 Thursday

Thursday: Mostly sunny, with a high near 87.
Mostly Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 58.
Mostly Clear
Lo 58 °F Hi 83 °F Lo 60 °F Hi 89 °F Lo 63 °F Hi 90 °F Lo 62 °F Hi 87 °F Lo 58 °F

Heat Advisory
 

Overnight
 
 Mostly clear, with a low around 58. Southwest wind around 5 mph.
Monday
 
 Sunny, with a high near 83. South southwest wind 5 to 10 mph.
Monday Night
 
 Mostly clear, with a low around 60. South southwest wind around 5 mph becoming calm in the evening.
Tuesday
 
 Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 63. South southwest wind around 5 mph becoming calm in the evening.
Wednesday
 
 Mostly sunny, with a high near 90.
Wednesday Night
 
 Mostly clear, with a low around 62.
Thursday
 
 Mostly sunny, with a high near 87.
Thursday Night
 
 Mostly clear, with a low around 58.
Friday
 
 Sunny, with a high near 85.
Friday Night
 
 Mostly clear, with a low around 57.
Saturday
 
 Sunny, with a high near 83.
Saturday Night
 
 Mostly clear, with a low around 56.
Sunday
 
 Mostly sunny, with a high near 77.

 

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