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Rancho Cucamonga, California Weather:
Monday, January 12, 2026
Rainy Weather
Day 66°
Night 43°
Precipitation 70 %
Wind 13 mph
UV Index (0 - 11+) 1
Weather Forecast History
Last Year's Weather on This Day (January 12, 2025)
Cloudy Weather

Day

64°

Night

50°

Wind

12 mph

UV Index

3

Precipitation

0 %