Rancho Cucamonga, California Weather:
Saturday, April 18, 2026
Cloudy Weather
Day 70°
Night 46°
Precipitation 2 %
Wind 6 mph
Weather Forecast History
Last Year's Weather on This Day (April 18, 2025)
Rainy Weather

Day

61°

Night

46°

Wind

8 mph

UV Index

3

Precipitation

55 %