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Ontario, California Weather:
Thursday, January 8, 2026
Cloudy Weather
Day 61°
Night 39°
Precipitation 20 %
Wind 5 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 8, 2025)
Windy Weather

Day

66°

Night

45°

Wind

20 mph

UV Index

3

Precipitation

0 %