Ontario, California Weather:
Thursday, October 29, 2026
Cloudy Weather
Day 73°
Night 57°
Precipitation 12 %
Wind 7 mph
UV Index (0 - 11+) 2
Weather Forecast History
Last Year's Weather on This Day (October 29, 2025)
Night

Day

93°

Night

61°

Wind

6 mph

Precipitation

0 %