Rialto, California Weather:
Monday, May 4, 2026
Cloudy Weather
Day 73°
Night 50°
Precipitation 97 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (May 4, 2025)
Rainy Weather

Day

57°

Night

52°

Wind

7 mph

UV Index

3

Precipitation

87 %