Rancho Cucamonga, United States - Weather Forecasts Maps News - Yahoo Weather

Night - Partly cloudy. Winds from NNW to N at 6 to 8 mph (9.7 to 12.9 kph). The overnight low will be 51 °F (10.6 °C). Mostly sunny with a high of 72 °F (22.2 °C). Winds variable at 7 to 9 mph ...