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Costa Mesa, California Weather:
Wednesday, March 25, 2026
Sunny with a Chance of Thunderstorms
Day 63°
Night 54°
Precipitation 1 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (March 25, 2025)
Partly Sunny with Showers

Day

64°

Night

55°

Wind

4 mph

UV Index

6

Precipitation

47 %