Costa Mesa, California Weather:
Monday, May 4, 2026
Cloudy Weather
Day 66°
Night 59°
Precipitation 49 %
Wind 6 mph
Weather Forecast History
Last Year's Weather on This Day (May 4, 2025)
Partly Sunny with Showers

Day

64°

Night

57°

Wind

8 mph

UV Index

4

Precipitation

40 %