National Weather Service Forecast for: Costa Mesa, CA
Issued by: National Weather Service San Diego, CA
Updated: Wed, 02-Jul-2025 12:08pm PDT

Costa Mesa
 
This
Afternoon
This Afternoon: Sunny
Sunny
Thursday

Thursday: Mostly Sunny
Mostly Sunny
Independence
Day
Independence Day: Mostly Sunny
Mostly Sunny
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
 
Hi 75 °F Hi 73 °F Hi 77 °F Hi 79 °F Hi 79 °F Hi 80 °F Hi 81 °F  
 
Tonight

Tonight: Mostly Cloudy
Mostly Cloudy
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday
Night
Friday Night: Partly Cloudy
Partly Cloudy
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
 
Lo 62 °F Lo 61 °F Lo 63 °F Lo 63 °F Lo 63 °F Lo 64 °F Lo 66 °F  

Air Quality Alert
Beach Hazards Statement
 

This Afternoon
 
Sunny, with a high near 75. Southwest wind around 10 mph.
Tonight
 
Mostly cloudy, with a low around 62. South wind 0 to 5 mph.
Thursday
 
Mostly sunny, with a high near 73. South wind 0 to 10 mph.
Thursday Night
 
Partly cloudy, with a low around 61. South wind 0 to 5 mph.
Independence Day
 
Mostly sunny, with a high near 77. South wind 0 to 10 mph.
Friday Night
 
Partly cloudy, with a low around 63.
Saturday
 
Mostly sunny, with a high near 79.
Saturday Night
 
Partly cloudy, with a low around 63.
Sunday
 
Mostly sunny, with a high near 79.
Sunday Night
 
Partly cloudy, with a low around 63.
Monday
 
Mostly sunny, with a high near 80.
Monday Night
 
Partly cloudy, with a low around 64.
Tuesday
 
Mostly sunny, with a high near 81.
Tuesday Night
 
Partly cloudy, with a low around 66.

 

Forecast from NOAA-NWS for Costa Mesa, CA.