I-5 weather conditions near Fullerton, California
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Clear 79°F 2025-06-18T11:15:00 
Today 2025-06-18, Sunny. Sunny, with a high near 86. Southwest wind 5 to 10 mph.
Tonight 2025-06-18, Patchy Fog. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 63. South wind around 5 mph.
Juneteenth 2025-06-19, Becoming Sunny. Mostly cloudy through mid morning, then gradual clearing, with a high near 83. Light south wind becoming southwest 5 to 10 mph in the morning.
Thursday Night 2025-06-19, Increasing Clouds. Increasing clouds, with a low around 63. Southwest wind around 5 mph becoming calm after midnight.
Friday 2025-06-20, Becoming Sunny. Partly sunny, then gradually becoming sunny, with a high near 79. South wind 5 to 10 mph.- Friday Night 2025-06-20, Increasing Clouds. Increasing clouds, with a low around 62.
- Saturday 2025-06-21, Becoming Sunny. Partly sunny, then gradually becoming sunny, with a high near 77.
- Saturday Night 2025-06-21, Increasing Clouds. Increasing clouds, with a low around 59.
- Sunday 2025-06-22, Becoming Sunny. Partly sunny, then gradually becoming sunny, with a high near 79.
- Sunday Night 2025-06-22, Increasing Clouds. Increasing clouds, with a low around 60.
- Monday 2025-06-23, Becoming Sunny. Mostly cloudy through mid morning, then gradual clearing, with a high near 79.
- Monday Night 2025-06-23, Increasing Clouds. Increasing clouds, with a low around 61.
- Tuesday 2025-06-24, Becoming Sunny. Partly sunny, then gradually becoming sunny, with a high near 79.