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Ontario, California Weather:
Sunday, January 25, 2026
Sunny Weather
Day 63°
Night 39°
Precipitation 10 %
Wind 7 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 25, 2025)
Partly Sunny with Showers

Day

61°

Night

46°

Wind

6 mph

UV Index

3

Precipitation

75 %