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Ontario, California Weather:
Friday, December 19, 2025
Cloudy Weather
Day 79°
Night 52°
Precipitation 6 %
Wind 2 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (December 19, 2024)
Cloudy Weather

Day

79°

Night

50°

Wind

4 mph

UV Index

3

Precipitation

0 %