Rancho Cucamonga, California Weather:
Wednesday, January 28, 2026
Cloudy Weather
Day 63°
Night 43°
Precipitation 20 %
Wind 6 mph
UV Index (0 - 11+) 4
Weather Forecast History
Last Year's Weather on This Day (January 28, 2025)
Cloudy Weather

Day

59°

Night

45°

Wind

6 mph

UV Index

4

Precipitation

1 %