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Fullerton, California Weather:
Sunday, January 25, 2026
Rainy Weather
Day 70°
Night 50°
Precipitation 57 %
Wind 5 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 25, 2025)
Partly Sunny with Showers

Day

63°

Night

48°

Wind

7 mph

UV Index

3

Precipitation

75 %