| National Weather Service Forecast for:
Costa Mesa, CA Issued by: National Weather Service San Diego, CA |
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| Updated: Mon, 27-Apr-2026 12:34am PDT | ||||||||||||||||||||||||||||||||||||||||
| Costa Mesa | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
A slight chance of rain showers. Partly cloudy, with a low around 53. West wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Monday |
A slight chance of rain showers before 11am. Sunny, with a high near 68. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. |
| Monday Night |
Mostly clear, with a low around 53. West wind 0 to 10 mph, with gusts as high as 20 mph. |
| Tuesday |
Sunny, with a high near 72. Northwest wind 0 to 10 mph, with gusts as high as 20 mph. |
| Tuesday Night |
Partly cloudy, with a low around 54. Southwest wind 0 to 10 mph, with gusts as high as 20 mph. |
| Wednesday |
Partly sunny, with a high near 72. |
| Wednesday Night |
Mostly cloudy, with a low around 55. |
| Thursday |
Mostly sunny, with a high near 72. |
| Thursday Night |
Mostly clear, with a low around 55. |
| Friday |
Sunny, with a high near 75. |
| Friday Night |
Partly cloudy, with a low around 56. |
| Saturday |
Mostly sunny, with a high near 76. |
| Saturday Night |
Partly cloudy, with a low around 56. |
| Sunday |
Partly sunny, with a high near 72. |
Forecast from NOAA-NWS for Costa Mesa, CA.