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Fullerton, California Weather:
Monday, September 22, 2025
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 84°
Night 68°

Weather Forecast History

Last Year's Weather on This Day (September 22, 2024)

Cloudy WeatherCloudy weather, overcast skies with clouds.

Day

81°

Night

59°

Wind

4 mph

UV Index

6

Precipitation

0