Fullerton, California Weather:
Saturday, April 18, 2026
Cloudy Weather
Day 70°
Night 50°
Precipitation 1 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (April 18, 2025)
Cloudy Weather

Day

63°

Night

52°

Wind

7 mph

UV Index

3

Precipitation

13 %