National Weather Service Forecast for: Placentia CA
Issued by: National Weather Service San Diego, CA
Updated: 1:38 pm PST Feb 2, 2026
 
Tonight

Tonight: Patchy dense fog between 10pm and 1am.  Otherwise, partly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm  in the evening.
Patchy Dense
Fog
Tuesday

Tuesday: Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.
Sunny
Tuesday
Night
Tuesday Night: Clear, with a low around 57. Calm wind becoming northeast around 5 mph after midnight.
Clear
Wednesday

Wednesday: Sunny, with a high near 88. East wind 5 to 15 mph, with gusts as high as 20 mph.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 59. East wind 5 to 10 mph.
Mostly Clear
Thursday

Thursday: Mostly sunny, with a high near 82.
Mostly Sunny
Thursday
Night
Thursday Night: Mostly cloudy, with a low around 57.
Mostly Cloudy
Friday

Friday: Partly sunny, with a high near 74.
Partly Sunny
Friday
Night
Friday Night: Mostly cloudy, with a low around 54.
Mostly Cloudy
Lo 52 °F Hi 84 °F Lo 57 °F Hi 88 °F Lo 59 °F Hi 82 °F Lo 57 °F Hi 74 °F Lo 54 °F

Air Quality Alert
 

Tonight
 
Patchy dense fog between 10pm and 1am. Otherwise, partly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
 
Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
 
Clear, with a low around 57. Calm wind becoming northeast around 5 mph after midnight.
Wednesday
 
Sunny, with a high near 88. East wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
 
Mostly clear, with a low around 59. East wind 5 to 10 mph.
Thursday
 
Mostly sunny, with a high near 82.
Thursday Night
 
Mostly cloudy, with a low around 57.
Friday
 
Partly sunny, with a high near 74.
Friday Night
 
Mostly cloudy, with a low around 54.
Saturday
 
Mostly sunny, with a high near 74.
Saturday Night
 
Mostly clear, with a low around 53.
Sunday
 
Sunny, with a high near 76.
Sunday Night
 
Increasing clouds, with a low around 54.
Monday
 
A slight chance of showers. Partly sunny, with a high near 73.

 

Forecast from NOAA-NWS for Placentia CA.