I-15 weather conditions near Rancho Cucamonga, California
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
This Afternoon 2025-10-14, Heavy Rain. Showers, mainly before 2pm. The rain could be heavy at times. High near 60. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.Tonight 2025-10-14, Chance Showers then Partly Cloudy. A chance of showers before 11pm. Partly cloudy, with a low around 49. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday 2025-10-15, Mostly Sunny. Mostly sunny, with a high near 65. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night 2025-10-15, Mostly Clear. Mostly clear, with a low around 48. West wind 5 to 10 mph becoming light southwest after midnight.
Thursday 2025-10-16, Sunny. Sunny, with a high near 75. West wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Thursday Night 2025-10-16, Clear. Clear, with a low around 53.- Friday 2025-10-17, Sunny. Sunny, with a high near 77.
- Friday Night 2025-10-17, Clear. Clear, with a low around 54.
- Saturday 2025-10-18, Sunny. Sunny, with a high near 80.
- Saturday Night 2025-10-18, Mostly Clear. Mostly clear, with a low around 56.
- Sunday 2025-10-19, Mostly Sunny. Mostly sunny, with a high near 78.
- Sunday Night 2025-10-19, Mostly Clear. Mostly clear, with a low around 53.
- Monday 2025-10-20, Mostly Sunny. Mostly sunny, with a high near 69.