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Ontario, California Weather:
Saturday, December 27, 2025
Cloudy Weather
Day 72°
Night 52°
Precipitation 11 %
Wind 1 mph
UV Index (0 - 11+) 1
Weather Forecast History
Last Year's Weather on This Day (December 27, 2024)
Cloudy Weather

Day

61°

Night

45°

Wind

4 mph

UV Index

2

Precipitation

1 %