I-15 weather conditions near Rancho Cucamonga, California

Roadnow AI Agent Live Update

7 day weather forecast

• Today 2025-10-12, Sunny. Sunny, with a high near 81. North wind around 5 mph becoming west in the afternoon.
• Tonight 2025-10-12, Mostly Clear. Mostly clear, with a low around 53. Northeast wind around 5 mph becoming calm after midnight.
• Columbus Day 2025-10-13, Patchy Fog then Mostly Sunny. Patchy fog before 11am. Otherwise, mostly sunny, with a high near 72. East wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
• Monday Night 2025-10-13, Chance Showers. A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 53. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
• Tuesday 2025-10-14, Heavy Rain. Showers likely. The rain could be heavy at times. Mostly cloudy, with a high near 62. South wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between three quarters and one inch possible.
• Tuesday Night 2025-10-14, Chance Showers then Partly Cloudy. A chance of showers before 11pm. Partly cloudy, with a low around 49. Chance of precipitation is 40%.
• Wednesday 2025-10-15, Sunny. Sunny, with a high near 65.
• Wednesday Night 2025-10-15, Clear. Clear, with a low around 48.
• Thursday 2025-10-16, Sunny. Sunny, with a high near 73.
• Thursday Night 2025-10-16, Clear. Clear, with a low around 51.
• Friday 2025-10-17, Sunny. Sunny, with a high near 76.
• Friday Night 2025-10-17, Mostly Clear. Mostly clear, with a low around 53.
• Saturday 2025-10-18, Sunny. Sunny, with a high near 77.