Ontario, California Weather:
Tuesday, March 3, 2026
Partly Sunny with Showers
Day 77°
Night 52°
Precipitation 57 %
Wind 4 mph
UV Index (0 - 11+) 5
Weather Forecast History
Last Year's Weather on This Day (March 3, 2025)
Cloudy Weather

Day

63°

Night

45°

Wind

9 mph

UV Index

5

Precipitation

9 %