Rancho Cucamonga, California Weather:
Monday, April 27, 2026
Cloudy Weather
Day 79°
Night 54°
Precipitation 25 %
Wind 7 mph
Weather Forecast History
Last Year's Weather on This Day (April 27, 2025)
Partly Sunny with Showers

Day

59°

Night

50°

Wind

8 mph

UV Index

4

Precipitation

90 %