| National Weather Service Forecast for:
Costa Mesa, CA Issued by: National Weather Service San Diego, CA |
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| Updated: Wed, 24-Jun-2026 12:40pm PDT | ||||||||||||||||||||||||||||||||||||||||
| Costa Mesa | ||||||||||||||||||||||||||||||||||||||||
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| This Afternoon |
Sunny, with a high near 76. Southwest wind around 10 mph. |
| Tonight |
Partly cloudy, with a low around 62. Southwest wind 0 to 10 mph. |
| Thursday |
Mostly sunny, with a high near 74. Southwest wind 0 to 10 mph. |
| Thursday Night |
Mostly cloudy, with a low around 61. Southwest wind 0 to 10 mph. |
| Friday |
Mostly sunny, with a high near 73. South wind 0 to 10 mph, with gusts as high as 20 mph. |
| Friday Night |
Mostly cloudy, with a low around 62. |
| Saturday |
Partly sunny, with a high near 73. |
| Saturday Night |
Mostly cloudy, with a low around 61. |
| Sunday |
Partly sunny, with a high near 70. |
| Sunday Night |
Partly cloudy, with a low around 60. |
| Monday |
Mostly sunny, with a high near 71. |
| Monday Night |
Partly cloudy, with a low around 60. |
| Tuesday |
Mostly sunny, with a high near 72. |
| Tuesday Night |
Partly cloudy, with a low around 59. |
Forecast from NOAA-NWS for Costa Mesa, CA.