Rialto, California Weather:
Wednesday, April 1, 2026
Sunny Weather
Day 75°
Night 52°
Precipitation 20 %
Wind 5 mph
UV Index (0 - 11+) 8
Weather Forecast History
Last Year's Weather on This Day (April 1, 2025)
Cloudy Weather

Day

64°

Night

45°

Wind

14 mph

UV Index

7

Precipitation

9 %