National Weather Service Forecast for: Costa Mesa CA
Issued by: National Weather Service San Diego, CA
Updated: 9:23 am PDT Apr 26, 2025
 
Today

Today: Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 61. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Tonight

Tonight: A slight chance of showers after 11pm. Mostly cloudy, with a low around 50. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Slight Chance
Showers
 Sunday

Sunday: Mostly sunny, with a high near 64. West wind 5 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 50. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.
Partly Cloudy
 Monday

Monday: Mostly sunny, with a high near 66. South wind 5 to 10 mph becoming west in the afternoon.
Mostly Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 53.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 69.
Sunny
 Tuesday
Night
Tuesday Night: Increasing clouds, with a low around 54.
Increasing
Clouds
 Wednesday

Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 68.
Decreasing
Clouds
Hi 61 °F Lo 50 °F Hi 64 °F Lo 50 °F Hi 66 °F Lo 53 °F Hi 69 °F Lo 54 °F Hi 68 °F

 

Today
 
 Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 61. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 A slight chance of showers after 11pm. Mostly cloudy, with a low around 50. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday
 
 Mostly sunny, with a high near 64. West wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
 
 Partly cloudy, with a low around 50. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.
Monday
 
 Mostly sunny, with a high near 66. South wind 5 to 10 mph becoming west in the afternoon.
Monday Night
 
 Mostly clear, with a low around 53.
Tuesday
 
 Sunny, with a high near 69.
Tuesday Night
 
 Increasing clouds, with a low around 54.
Wednesday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 68.
Wednesday Night
 
 Increasing clouds, with a low around 53.
Thursday
 
 Cloudy through mid morning, then gradual clearing, with a high near 69.
Thursday Night
 
 Increasing clouds, with a low around 53.
Friday
 
 Partly sunny, with a high near 68.

 

Forecast from NOAA-NWS for Costa Mesa CA.