I-405 CA weather conditions near Costa Mesa, California
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Overcast 66°F 2025-06-14T10:00:00 
Today 2025-06-14, Mostly Sunny. Mostly sunny, with a high near 79. Southwest wind 5 to 10 mph.
Tonight 2025-06-14, Partly Cloudy. Partly cloudy, with a low around 62. West wind around 5 mph becoming calm in the evening.- Sunday 2025-06-15, Mostly Sunny. Mostly sunny, with a high near 81. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Sunday Night 2025-06-15, Patchy Fog. Patchy fog after 11pm. Otherwise, mostly clear, with a low around 63. West wind around 5 mph becoming calm in the evening.Monday 2025-06-16, Patchy Fog then Sunny. Patchy fog before 11am. Otherwise, mostly sunny, with a high near 80. Light southwest wind increasing to 5 to 10 mph in the afternoon.
- Monday Night 2025-06-16, Patchy Fog. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 63.
Tuesday 2025-06-17, Patchy Fog then Mostly Sunny. Patchy fog before 11am. Otherwise, mostly sunny, with a high near 80.
- Tuesday Night 2025-06-17, Partly Cloudy. Partly cloudy, with a low around 64.
- Wednesday 2025-06-18, Mostly Sunny. Mostly sunny, with a high near 79.
- Wednesday Night 2025-06-18, Partly Cloudy. Partly cloudy, with a low around 64.
- Juneteenth 2025-06-19, Mostly Sunny. Mostly sunny, with a high near 79.
Thursday Night 2025-06-19, Increasing Clouds. Increasing clouds, with a low around 64.
Friday 2025-06-20, Decreasing Clouds. Mostly cloudy, then gradually becoming sunny, with a high near 79.