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Rancho Cucamonga, California Weather:
Tuesday, September 23, 2025
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 86°
Night 59°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 6

Weather Forecast History

Last Year's Weather on This Day (September 23, 2024)

NightNighttime, with dark skies and stars or a moon visible.

Day

93°

Night

63°

Wind

4 mph

Precipitation

0