Fullerton, California Weather:
Tuesday, August 11, 2026
Cloudy Weather
Day 86°
Night 70°
Precipitation 2 %
Wind 7 mph
UV Index (0 - 11+) 10
Weather Forecast History
Last Year's Weather on This Day (August 11, 2025)
Cloudy Night

Day

82°

Night

64°

Wind

5 mph

Precipitation

0 %