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: Clear 64°F 2025-07-08T01:45:00 
Overnight 2025-07-08, Partly Cloudy. Partly cloudy, with a low around 62. West wind around 5 mph becoming calm.
Tuesday 2025-07-08, Sunny. Sunny, with a high near 81. Light west wind increasing to 5 to 10 mph in the morning.
Tuesday Night 2025-07-08, Mostly Clear. Mostly clear, with a low around 65. West wind around 5 mph becoming calm in the evening.
Wednesday 2025-07-09, Mostly Sunny. Mostly sunny, with a high near 82. Light southwest wind increasing to 5 to 10 mph in the morning.- Wednesday Night 2025-07-09, Partly Cloudy. Partly cloudy, with a low around 65. West wind around 5 mph becoming calm in the evening.
- Thursday 2025-07-10, Mostly Sunny. Mostly sunny, with a high near 83.
Thursday Night 2025-07-10, Increasing Clouds. Increasing clouds, with a low around 65.
Friday 2025-07-11, Decreasing Clouds. Mostly cloudy, then gradually becoming sunny, with a high near 78.- Friday Night 2025-07-11, Increasing Clouds. Increasing clouds, with a low around 64.
- Saturday 2025-07-12, Decreasing Clouds. Mostly cloudy, then gradually becoming sunny, with a high near 78.
- Saturday Night 2025-07-12, Increasing Clouds. Increasing clouds, with a low around 64.
- Sunday 2025-07-13, Gradual Clearing. Cloudy through mid morning, then gradual clearing, with a high near 78.
- Sunday Night 2025-07-13, Increasing Clouds. Increasing clouds, with a low around 64.
- Monday 2025-07-14, Gradual Clearing. Cloudy through mid morning, then gradual clearing, with a high near 78.