Ontario, California Weather:
Monday, March 2, 2026
Cloudy Weather
Day 72°
Night 50°
Precipitation 12 %
Wind 5 mph
UV Index (0 - 11+) 5
Weather Forecast History
Last Year's Weather on This Day (March 2, 2025)
Partly Sunny with Showers

Day

59°

Night

43°

Wind

11 mph

UV Index

3

Precipitation

87 %