| National Weather Service Forecast for:
Costa Mesa, CA Issued by: National Weather Service San Diego, CA |
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| Updated: Tue, 28-Oct-2025 2:35am PDT | ||||||||||||||||||||||||||||||||||||||||
| Costa Mesa | ||||||||||||||||||||||||||||||||||||||||
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| Today |
Sunny, with a high near 82. Southwest wind 0 to 10 mph. |
| Tonight |
Mostly clear, with a low around 60. Southwest wind 0 to 5 mph. |
| Wednesday |
Sunny, with a high near 87. West wind 0 to 10 mph. |
| Wednesday Night |
Mostly clear, with a low around 61. South wind 0 to 5 mph. |
| Thursday |
Sunny, with a high near 82. East wind 0 to 5 mph. |
| Thursday Night |
Patchy fog after 11pm. Partly cloudy, with a low around 60. |
| Friday |
Patchy fog before 11am. Mostly sunny, with a high near 76. |
| Friday Night |
Patchy fog after 11pm. Partly cloudy, with a low around 58. |
| Saturday |
Patchy fog before 11am. Mostly sunny, with a high near 78. |
| Saturday Night |
Patchy fog after 11pm. Partly cloudy, with a low around 59. |
| Sunday |
Patchy fog before 10am. Mostly sunny, with a high near 79. |
| Sunday Night |
Patchy fog after 10pm. Partly cloudy, with a low around 59. |
| Monday |
Patchy fog before 10am. Mostly sunny, with a high near 76. |
| Monday Night |
Patchy fog after 10pm. Partly cloudy, with a low around 58. |
Forecast from NOAA-NWS for Costa Mesa, CA.