I-5 weather conditions near Fullerton, California

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Overcast 70°F 2025-08-17T08:15:00
• Today 2025-08-17, Becoming Sunny. Partly sunny, then gradually becoming sunny, with a high near 82. Light south wind becoming southwest 5 to 10 mph in the afternoon.
• Tonight 2025-08-17, Increasing Clouds. Increasing clouds, with a low around 66. West wind around 5 mph becoming calm in the evening.
• Monday 2025-08-18, Becoming Sunny. Partly sunny, then gradually becoming sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
• Monday Night 2025-08-18, Increasing Clouds. Increasing clouds, with a low around 66. West wind around 5 mph becoming calm in the evening.
• Tuesday 2025-08-19, Becoming Sunny. Mostly cloudy through mid morning, then gradual clearing, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the afternoon.
• Tuesday Night 2025-08-19, Mostly Clear. Mostly clear, with a low around 66.
• Wednesday 2025-08-20, Sunny. Sunny, with a high near 87.
• Wednesday Night 2025-08-20, Patchy Fog. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 69.
• Thursday 2025-08-21, Patchy Fog then Sunny. Patchy fog before 11am. Otherwise, mostly sunny, with a high near 90.
• Thursday Night 2025-08-21, Patchy Fog. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 71.
• Friday 2025-08-22, Patchy Fog then Sunny. Patchy fog. Otherwise, partly sunny, then gradually becoming sunny, with a high near 91.
• Friday Night 2025-08-22, Patchy Fog. Patchy fog. Otherwise, increasing clouds, with a low around 72.
• Saturday 2025-08-23, Patchy Fog then Sunny. Patchy fog. Otherwise, mostly sunny, with a high near 91.