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Ontario, California Weather:
Thursday, January 22, 2026
Sunny Weather
Day 70°
Night 43°
Precipitation 20 %
Wind 6 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 22, 2025)
Cloudy Weather

Day

75°

Night

55°

Wind

7 mph

UV Index

3

Precipitation

0 %