| NWS Forecast for: Costa Mesa CA Issued by: National Weather Service San Diego, CA Last Update: 12:06 am PDT Oct 7, 2026 | |
Overnight: Mostly clear, with a low around 71. Calm wind. Wednesday: Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon. Wednesday Night: Mostly clear, with a low around 68. West wind around 5 mph becoming calm in the evening. Thursday: Patchy fog before 11am. Otherwise, sunny, with a high near 86. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Thursday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 67. Southwest wind around 5 mph becoming calm after midnight. Friday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 83. Friday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 67. Saturday: Partly sunny, with a high near 78. Saturday Night: Mostly cloudy, with a low around 65. Sunday: A slight chance of showers. Partly sunny, with a high near 74. Sunday Night: A chance of showers. Mostly cloudy, with a low around 60. Columbus Day: A chance of showers. Partly sunny, with a high near 73. Monday Night: A chance of showers. Partly cloudy, with a low around 57. Tuesday: A slight chance of showers. Mostly sunny, with a high near 75. | |
| Costa Mesa CA 33.66°N 117.94°W (Elev. 7 ft) | |
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