Ontario, California Weather:
Wednesday, June 10, 2026
Sunny Weather
Day 82°
Night 55°
Precipitation 2 %
Wind 6 mph
UV Index (0 - 11+) 11
Weather Forecast History
Last Year's Weather on This Day (June 10, 2025)
Sunny Weather

Day

86°

Night

61°

Wind

7 mph

UV Index

12

Precipitation

25 %