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Fullerton, California Weather:
Tuesday, March 17, 2026
Sunny Weather
Day 64°
Night 46°
Precipitation 0 %
Wind 7 mph
Weather Forecast History
Last Year's Weather on This Day (March 17, 2025)
Partly Sunny with Showers

Day

66°

Night

43°

Wind

7 mph

UV Index

6

Precipitation

40 %