National Weather Service Forecast for: Placentia CA
Issued by: National Weather Service San Diego, CA
Updated: 1:40 am PST Dec 5, 2025
 
Overnight

Overnight: Mostly clear, with a low around 47. East wind around 5 mph.
Mostly Clear
 Friday

Friday: Sunny, with a high near 71. Calm wind becoming southwest around 5 mph in the afternoon.
Sunny
 Friday
Night
Friday Night: Clear, with a low around 49. Calm wind.
Clear
 Saturday

Saturday: Sunny, with a high near 72. Calm wind becoming southwest around 5 mph in the afternoon.
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 49. Calm wind.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 75.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 52.
Mostly Clear
 Monday

Monday: Sunny, with a high near 79.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 56.
Mostly Clear
Lo 47 °F Hi 71 °F Lo 49 °F Hi 72 °F Lo 49 °F Hi 75 °F Lo 52 °F Hi 79 °F Lo 56 °F

 

Overnight
 
 Mostly clear, with a low around 47. East wind around 5 mph.
Friday
 
 Sunny, with a high near 71. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
 
 Clear, with a low around 49. Calm wind.
Saturday
 
 Sunny, with a high near 72. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
 
 Mostly clear, with a low around 49. Calm wind.
Sunday
 
 Sunny, with a high near 75.
Sunday Night
 
 Mostly clear, with a low around 52.
Monday
 
 Sunny, with a high near 79.
Monday Night
 
 Mostly clear, with a low around 56.
Tuesday
 
 Sunny, with a high near 81.
Tuesday Night
 
 Mostly clear, with a low around 56.
Wednesday
 
 Sunny, with a high near 79.
Wednesday Night
 
 Mostly clear, with a low around 55.
Thursday
 
 Sunny, with a high near 78.

 

Forecast from NOAA-NWS for Placentia CA.