Rancho Cucamonga, California Weather:
Monday, August 10, 2026
Cloudy Weather
Day 97°
Night 70°
Precipitation 1 %
Wind 9 mph
UV Index (0 - 11+) 11
Weather Forecast History
Last Year's Weather on This Day (August 10, 2025)
Night

Day

91°

Night

64°

Wind

5 mph

Precipitation

0 %