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Ontario, California Weather:
Friday, January 30, 2026
Cloudy Weather
Day 66°
Night 43°
Precipitation 20 %
Wind 7 mph
UV Index (0 - 11+) 4
Weather Forecast History
Last Year's Weather on This Day (January 30, 2025)
Cloudy Weather

Day

55°

Night

41°

Wind

4 mph

UV Index

3

Precipitation

3 %