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Rancho Cucamonga, California Weather:
Tuesday, March 31, 2026
Cloudy Weather
Day 72°
Night 54°
Precipitation 25 %
Wind 8 mph
Weather Forecast History
Last Year's Weather on This Day (March 31, 2025)
Cloudy Weather

Day

63°

Night

48°

Wind

11 mph

UV Index

2

Precipitation

25 %