Rancho Cucamonga, California Weather:
Tuesday, May 26, 2026
Cloudy Weather
Day 75°
Night 57°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 11
Weather Forecast History
Last Year's Weather on This Day (May 26, 2025)
Cloudy Weather

Day

77°

Night

55°

Wind

8 mph

UV Index

12

Precipitation

2 %