Rancho Cucamonga, California Weather:
Friday, October 9, 2026
Cloudy Weather
Day 99°
Night 72°
Precipitation 25 %
Wind 2 mph
UV Index (0 - 11+) 2
Weather Forecast History
Last Year's Weather on This Day (October 9, 2025)
Stormy Weather

Day

82°

Night

64°

Wind

5 mph

Precipitation

49 %