Rancho Cucamonga, California Weather:
Monday, June 1, 2026
Cloudy Weather
Day 81°
Night 55°
Precipitation 4 %
Wind 7 mph
Weather Forecast History
Last Year's Weather on This Day (June 1, 2025)
Cloudy Weather

Day

86°

Night

59°

Wind

8 mph

UV Index

11

Precipitation

25 %