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Ontario, California Weather:
Monday, January 26, 2026
Sunny Weather
Day 63°
Night 39°
Precipitation 20 %
Wind 6 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 26, 2025)
Rainy Weather

Day

54°

Night

45°

Wind

6 mph

UV Index

1

Precipitation

97 %