Ontario, California Weather:
Wednesday, April 15, 2026
Rainy Weather
Day 68°
Night 46°
Precipitation 56 %
Wind 4 mph
UV Index (0 - 11+) 2
Weather Forecast History
Last Year's Weather on This Day (April 15, 2025)
Partly Sunny with Showers

Day

68°

Night

52°

Wind

7 mph

UV Index

9

Precipitation

45 %