I-405 CA weather conditions near Fullerton, California
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Columbus Day 2025-10-13, Partly Sunny. Partly sunny, with a high near 71. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight 2025-10-13, Showers Likely. Showers likely, mainly after 11pm. Mostly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday 2025-10-14, Heavy Rain. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 66. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.Tuesday Night 2025-10-14, Slight Chance Showers then Partly Cloudy. A slight chance of showers before 11pm. Partly cloudy, with a low around 53. West wind around 5 mph becoming east after midnight. Chance of precipitation is 20%.
Wednesday 2025-10-15, Sunny. Sunny, with a high near 69. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Wednesday Night 2025-10-15, Mostly Clear. Mostly clear, with a low around 52.- Thursday 2025-10-16, Sunny. Sunny, with a high near 74.
- Thursday Night 2025-10-16, Mostly Clear. Mostly clear, with a low around 56.
- Friday 2025-10-17, Sunny. Sunny, with a high near 79.
Friday Night 2025-10-17, Increasing Clouds. Increasing clouds, with a low around 58.- Saturday 2025-10-18, Decreasing Clouds. Mostly cloudy, then gradually becoming sunny, with a high near 80.
- Saturday Night 2025-10-18, Partly Cloudy. Partly cloudy, with a low around 58.
Sunday 2025-10-19, Mostly Sunny. Mostly sunny, with a high near 77.