| National Weather Service Forecast for:
Costa Mesa, CA Issued by: National Weather Service San Diego, CA |
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| Updated: Fri, 10-Apr-2026 9:30pm PDT | ||||||||||||||||||||||||||||||||||||||||
| Costa Mesa | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
A slight chance of rain showers before 5am. Mostly cloudy, with a low around 56. West wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Saturday |
Mostly sunny, with a high near 69. Southwest wind 0 to 10 mph, with gusts as high as 20 mph. |
| Saturday Night |
Rain showers after 11pm. Mostly cloudy, with a low around 55. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday |
Rain showers before 11am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 66. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Sunday Night |
A slight chance of rain showers before 11pm. Partly cloudy, with a low around 52. West wind 5 to 10 mph. Chance of precipitation is 20%. |
| Monday |
Mostly sunny, with a high near 67. |
| Monday Night |
Mostly clear, with a low around 51. |
| Tuesday |
Sunny, with a high near 71. |
| Tuesday Night |
Mostly clear, with a low around 51. |
| Wednesday |
Sunny, with a high near 73. |
| Wednesday Night |
Mostly cloudy, with a low around 54. |
| Thursday |
Partly sunny, with a high near 73. |
| Thursday Night |
Partly cloudy, with a low around 53. |
| Friday |
Sunny, with a high near 75. |
Forecast from NOAA-NWS for Costa Mesa, CA.