Rancho Cucamonga, California Weather:
Thursday, July 9, 2026
Sunny Weather
Day 93°
Night 64°
Precipitation 20 %
Wind 2 mph
UV Index (0 - 11+) 11
Weather Forecast History
Last Year's Weather on This Day (July 9, 2025)
Cloudy Weather

Day

97°

Night

68°

Wind

7 mph

UV Index

12

Precipitation

2 %