| National Weather Service Forecast for:
Costa Mesa, CA Issued by: National Weather Service San Diego, CA |
||||||||||||||||||||||||||||||||||||||||
| Updated: Sat, 08-Aug-2026 12:01pm PDT | ||||||||||||||||||||||||||||||||||||||||
| Costa Mesa | ||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||
| Tonight |
Partly cloudy, with a low around 69. Southwest wind 0 to 10 mph. |
| Sunday |
Mostly sunny, with a high near 84. West wind 0 to 10 mph. |
| Sunday Night |
Mostly cloudy, with a low around 69. Southwest wind 0 to 10 mph. |
| Monday |
Mostly sunny, with a high near 82. Southwest wind 0 to 10 mph. |
| Monday Night |
Mostly cloudy, with a low around 69. Southwest wind 0 to 10 mph. |
| Tuesday |
Mostly sunny, with a high near 82. |
| Tuesday Night |
Partly cloudy, with a low around 68. |
| Wednesday |
Mostly sunny, with a high near 81. |
| Wednesday Night |
A slight chance of rain showers after 5am. Partly cloudy, with a low around 67. |
| Thursday |
A slight chance of rain showers before 11am. Partly sunny, with a high near 79. |
| Thursday Night |
Mostly cloudy, with a low around 67. |
| Friday |
Partly sunny, with a high near 79. |
| Friday Night |
Partly cloudy, with a low around 66. |
| Saturday |
Mostly sunny, with a high near 79. |
Forecast from NOAA-NWS for Costa Mesa, CA.