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Fullerton, California Weather:
Wednesday, December 17, 2025
Cloudy Weather
Day 73°
Night 48°
Precipitation 4 %
Wind 4 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (December 17, 2024)
Sunny Weather

Day

75°

Night

55°

Wind

4 mph

UV Index

3

Precipitation

0 %