Fullerton, California Weather:
Thursday, April 30, 2026
Cloudy Weather
Day 79°
Night 57°
Precipitation 20 %
Wind 1 mph
UV Index (0 - 11+) 9
Weather Forecast History
Last Year's Weather on This Day (April 30, 2025)
Cloudy Weather

Day

70°

Night

55°

Wind

7 mph

UV Index

9

Precipitation

2 %