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Ontario, California Weather:
Friday, January 23, 2026
Sunny Weather
Day 70°
Night 45°
Precipitation 20 %
Wind 1 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 23, 2025)
Sunny Weather

Day

75°

Night

46°

Wind

19 mph

UV Index

3

Precipitation

0 %