Rancho Cucamonga, CA Weather - Tomorrow’s Forecast

Friday

Chance of showers and thunderstorms

High:
64°F

A slight chance of showers before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 64. Southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

Friday Night

Chance of showers and thunderstorms

Overnight low:
51°F

A slight chance of showers before 11pm. Partly cloudy, with a low around 51. West wind 10 to 20 mph becoming northeast after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 20%.