| National Weather Service Forecast for:
Costa Mesa, CA Issued by: National Weather Service San Diego, CA |
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| Updated: Fri, 12-Dec-2025 2:04am PST | ||||||||||||||||||||||||||||||||||||||||
| Costa Mesa | ||||||||||||||||||||||||||||||||||||||||
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| Today |
Patchy fog before 10am. Mostly sunny, with a high near 73. Southwest wind 0 to 5 mph. |
| Tonight |
Patchy fog after 10pm. Partly cloudy, with a low around 51. West wind 0 to 5 mph. |
| Saturday |
Patchy fog before 10am. Partly sunny, with a high near 72. Northwest wind 0 to 5 mph. |
| Saturday Night |
Patchy fog after 10pm. Mostly cloudy, with a low around 52. Northwest wind 0 to 5 mph. |
| Sunday |
Patchy fog before 10am. Mostly sunny, with a high near 73. Northwest wind 0 to 5 mph. |
| Sunday Night |
Patchy fog after 10pm. Mostly clear, with a low around 53. |
| Monday |
Patchy fog before 10am. Sunny, with a high near 76. |
| Monday Night |
Mostly clear, with a low around 53. |
| Tuesday |
Mostly sunny, with a high near 74. |
| Tuesday Night |
Patchy fog after 10pm. Partly cloudy, with a low around 53. |
| Wednesday |
Patchy fog before 10am. Mostly sunny, with a high near 71. |
| Wednesday Night |
Patchy fog after 10pm. Mostly cloudy, with a low around 53. |
| Thursday |
Patchy fog before 10am. Mostly sunny, with a high near 71. |
| Thursday Night |
Patchy fog after 10pm. Partly cloudy, with a low around 53. |
Forecast from NOAA-NWS for Costa Mesa, CA.