Rialto, California Weather:
Sunday, August 9, 2026
Cloudy Weather
Day 100°
Night 72°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 11
Weather Forecast History
Last Year's Weather on This Day (August 9, 2025)
Night

Day

95°

Night

70°

Wind

5 mph

Precipitation

0 %