Rialto, California Weather:
Saturday, April 18, 2026
Rainy Weather
Day 77°
Night 54°
Precipitation 69 %
Wind 5 mph
UV Index (0 - 11+) 5
Weather Forecast History
Last Year's Weather on This Day (April 18, 2025)
Rainy Weather

Day

61°

Night

46°

Wind

7 mph

UV Index

4

Precipitation

87 %