Ontario, California Weather:
Tuesday, October 13, 2026
Sunny Weather
Day 81°
Night 57°
Precipitation 1 %
Wind 5 mph
UV Index (0 - 11+) 5
Weather Forecast History
Last Year's Weather on This Day (October 13, 2025)
Rainy Weather

Day

68°

Night

55°

Wind

9 mph

Precipitation

96 %