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Costa Mesa, California Weather:
Monday, January 5, 2026
Cloudy Weather
Day 66°
Night 52°
Precipitation 2 %
Wind 5 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (January 5, 2025)
Cloudy Weather

Day

68°

Night

43°

Wind

4 mph

UV Index

3

Precipitation

0 %