Ontario, California Weather:
Friday, April 3, 2026
Cloudy Weather
Day 72°
Night 45°
Precipitation 1 %
Wind 6 mph
Weather Forecast History
Last Year's Weather on This Day (April 3, 2025)
Sunny with a Chance of Thunderstorms

Day

63°

Night

45°

Wind

7 mph

UV Index

8

Precipitation

40 %