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Rancho Cucamonga, California Weather:
Monday, August 18, 2025
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 90°
Night 63°
Precipitation 1 %
Wind 7 mph
UV Index (0 - 11+) 10

Weather Forecast History

Last Year's Weather on This Day (August 18, 2024)

Sunny WeatherSunny weather, clear skies and sunny weather.

Day

93°

Night

63°

Wind

8 mph

UV Index

10

Precipitation

0