Rancho Cucamonga, California Weather:
Tuesday, May 5, 2026
Rainy Weather
Day 72°
Night 57°
Precipitation 68 %
Wind 6 mph
UV Index (0 - 11+) 7
Weather Forecast History
Last Year's Weather on This Day (May 5, 2025)
Cloudy Weather

Day

63°

Night

55°

Wind

7 mph

UV Index

3

Precipitation

25 %