Rialto, California Weather:
Saturday, July 18, 2026
Cloudy Weather
Day 93°
Night 63°
Precipitation 2 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (July 18, 2025)
Partly Sunny with Showers

Day

86°

Night

64°

Wind

7 mph

UV Index

11

Precipitation

40 %