Rialto, California Weather:
Friday, October 9, 2026
Hot Day
Day 99°
Night 66°
Precipitation 2 %
Wind 6 mph
UV Index (0 - 11+) 5
Weather Forecast History
Last Year's Weather on This Day (October 9, 2025)
Stormy Weather

Day

82°

Night

66°

Wind

4 mph

Precipitation

49 %