National Weather Service Forecast for: Costa Mesa, CA
Issued by: National Weather Service San Diego, CA
Updated: Thu, 08-May-2025 12:41pm PDT

Costa Mesa
 
  Friday

Friday: Patchy Fog then Sunny
Patchy Fog then Sunny
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Partly Sunny
Partly Sunny
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny
Thursday

Thursday: Mostly Sunny
Mostly Sunny
  Hi 81 °F Hi 84 °F Hi 77 °F Hi 70 °F Hi 67 °F Hi 69 °F Hi 69 °F
 
Tonight

Tonight: Mostly Clear then Patchy Fog
Mostly Clear then Patchy Fog
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Mostly Cloudy
Mostly Cloudy
Sunday
Night
Sunday Night: Mostly Cloudy
Mostly Cloudy
Monday
Night
Monday Night: Mostly Cloudy
Mostly Cloudy
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
 
Lo 58 °F Lo 65 °F Lo 64 °F Lo 59 °F Lo 56 °F Lo 54 °F Lo 55 °F  

 

Tonight
 
Patchy fog after 5am. Mostly clear, with a low around 58. West wind 0 to 5 mph.
Friday
 
Patchy fog before 8am. Sunny, with a high near 81. Southwest wind 0 to 10 mph.
Friday Night
 
Mostly clear, with a low around 65. South wind 0 to 10 mph.
Saturday
 
Mostly sunny, with a high near 84. South wind 0 to 10 mph.
Saturday Night
 
Mostly cloudy, with a low around 64. Southwest wind 0 to 10 mph.
Sunday
 
Partly sunny, with a high near 77.
Sunday Night
 
Mostly cloudy, with a low around 59.
Monday
 
Mostly sunny, with a high near 70.
Monday Night
 
Mostly cloudy, with a low around 56.
Tuesday
 
Mostly sunny, with a high near 67.
Tuesday Night
 
Partly cloudy, with a low around 54.
Wednesday
 
Mostly sunny, with a high near 69.
Wednesday Night
 
Partly cloudy, with a low around 55.
Thursday
 
Mostly sunny, with a high near 69.

 

Forecast from NOAA-NWS for Costa Mesa, CA.