I-10 weather conditions near Rancho Cucamonga, California
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Partly Cloudy 86°F 2025-09-16T20:00:00 
Tonight 2025-09-16, Mostly Clear. Mostly clear, with a low around 70. West wind 5 to 10 mph becoming light and variable in the evening.
Wednesday 2025-09-17, Mostly Sunny. Mostly sunny, with a high near 91. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night 2025-09-17, Chance Showers. A chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 68. West wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday 2025-09-18, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night 2025-09-18, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday 2025-09-19, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, then gradually becoming sunny, with a high near 82. Chance of precipitation is 30%.- Friday Night 2025-09-19, Partly Cloudy. Partly cloudy, with a low around 65.
- Saturday 2025-09-20, Mostly Sunny. Mostly sunny, with a high near 87.
- Saturday Night 2025-09-20, Mostly Clear. Mostly clear, with a low around 67.
- Sunday 2025-09-21, Mostly Sunny. Mostly sunny, with a high near 89.
- Sunday Night 2025-09-21, Mostly Clear. Mostly clear, with a low around 69.
Monday 2025-09-22, Sunny. Sunny, with a high near 90.- Monday Night 2025-09-22, Mostly Clear. Mostly clear, with a low around 69.
- Tuesday 2025-09-23, Sunny. Sunny, with a high near 90.