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Ontario, California Weather:
Sunday, August 17, 2025
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 91°
Night 63°
Precipitation 20 %
Wind 1 mph
UV Index (0 - 11+) 10

Weather Forecast History

Last Year's Weather on This Day (August 17, 2024)

Cloudy WeatherCloudy weather, overcast skies with clouds.

Day

86°

Night

64°

Wind

8 mph

UV Index

10

Precipitation

0