Costa Mesa, California Weather:
Friday, April 17, 2026
Cloudy Weather
Day 66°
Night 59°
Precipitation 1 %
Wind 6 mph
UV Index (0 - 11+) 4
Weather Forecast History
Last Year's Weather on This Day (April 17, 2025)
Rainy Weather

Day

64°

Night

54°

Wind

8 mph

UV Index

3

Precipitation

40 %