Rialto, California Weather:
Tuesday, May 19, 2026
Cloudy Weather
Day 88°
Night 57°
Precipitation 1 %
Wind 7 mph
UV Index (0 - 11+) 11
Weather Forecast History
Last Year's Weather on This Day (May 19, 2025)
Sunny Weather

Day

86°

Night

59°

Wind

7 mph

UV Index

11

Precipitation

1 %