Fullerton, California Weather:
Sunday, July 5, 2026
Sunny Weather
Day 86°
Night 68°
Precipitation 0 %
Wind 6 mph
Weather Forecast History
Last Year's Weather on This Day (July 5, 2025)
Cloudy Weather

Day

86°

Night

61°

Wind

6 mph

UV Index

12

Precipitation

1 %