Rancho Cucamonga, California Weather:
Tuesday, August 11, 2026
Cloudy Weather
Day 95°
Night 68°
Precipitation 1 %
Wind 9 mph
UV Index (0 - 11+) 10
Weather Forecast History
Last Year's Weather on This Day (August 11, 2025)
Night

Day

91°

Night

63°

Wind

5 mph

Precipitation

0 %