I-405 CA weather conditions near Fountain Valley, California

Roadnow AI Agent Live Update

7 day weather forecast

• Tonight 2025-08-14, Increasing Clouds. Increasing clouds, with a low around 65. Southwest wind around 5 mph becoming southeast after midnight.
• Friday 2025-08-15, Gradual Clearing. Cloudy through mid morning, then gradual clearing, with a high near 75. South wind 5 to 10 mph.
• Friday Night 2025-08-15, Increasing Clouds. Increasing clouds, with a low around 65. Southeast wind around 5 mph.
• Saturday 2025-08-16, Gradual Clearing. Cloudy through mid morning, then gradual clearing, with a high near 75. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
• Saturday Night 2025-08-16, Increasing Clouds. Increasing clouds, with a low around 64. Southwest wind around 5 mph becoming southeast after midnight.
• Sunday 2025-08-17, Becoming Sunny. Cloudy through mid morning, then gradual clearing, with a high near 76.
• Sunday Night 2025-08-17, Increasing Clouds. Increasing clouds, with a low around 65.
• Monday 2025-08-18, Becoming Sunny. Cloudy through mid morning, then gradual clearing, with a high near 78.
• Monday Night 2025-08-18, Patchy Fog. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 66.
• Tuesday 2025-08-19, Patchy Fog then Sunny. Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79.
• Tuesday Night 2025-08-19, Patchy Fog. Patchy fog. Otherwise, increasing clouds, with a low around 66.
• Wednesday 2025-08-20, Patchy Fog then Sunny. Patchy fog. Otherwise, mostly sunny, with a high near 81.
• Wednesday Night 2025-08-20, Patchy Fog. Patchy fog. Otherwise, partly cloudy, with a low around 66.
• Thursday 2025-08-21, Patchy Fog then Sunny. Patchy fog. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81.