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Today Hourly 7 days 30 days May
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May 2026 Weather | Costa Mesa, California

Fri 5/1
Cloudy Weather
Day 70°
Night 61°
49
Sat 5/2
Cloudy Weather
Day 70°
Night 59°
2
Sun 5/3
Cloudy Weather
Day 66°
Night 57°
80
Mon 5/4
Cloudy Weather
Day 66°
Night 59°
49
Tue 5/5
Sunny Weather
Day 70°
Night 61°
7
Wed 5/6
Sunny Weather
Day 72°
Night 61°
5
Thu 5/7
Cloudy Weather
Day 72°
Night 61°
0
Fri 5/8
Cloudy Weather
Day 70°
Night 61°
0
Sat 5/9
Cloudy Weather
Day 72°
Night 61°
0
Sun 5/10
Cloudy Weather
Day 70°
Night 61°
0
Mon 5/11
Cloudy Weather
Day 72°
Night 61°
0
Tue 5/12
Cloudy Weather
Day 70°
Night 61°
40
Wed 5/13
Cloudy Weather
Day 66°
Night 57°
0
Thu 5/14
Cloudy Weather
Day 64°
Night 57°
0
Fri 5/15
Sunny Weather
Day 72°
Night 61°
0
Sat 5/16
Sunny Weather
Day 72°
Night 61°
25
Sun 5/17
Sunny Weather
Day 72°
Night 61°
16
Mon 5/18
Sunny Weather
Day 70°
Night 57°
0
Tue 5/19
Sunny Weather
Day 70°
Night 55°
0
Wed 5/20
Sunny Weather
Day 66°
Night 57°
0
Thu 5/21
Sunny Weather
Day 68°
Night 59°
1
Fri 5/22
Cloudy Weather
Day 70°
Night 63°
0
Sat 5/23
Sunny Weather
Day 72°
Night 61°
49
Sun 5/24
Sunny Weather
Day 72°
Night 57°
1
Mon 5/25
Sunny Weather
Day 70°
Night 55°
0
Tue 5/26
Sunny Weather
Day 66°
Night 55°
1
Wed 5/27
Cloudy Weather
Day 64°
Night 57°
1
Thu 5/28
Cloudy Weather
Day 66°
Night 57°
2
Fri 5/29
Cloudy Weather
Day 66°
Night 55°
0
Sat 5/30
Cloudy Weather
Day 64°
Night 61°
0
Sun 5/31
Sunny Weather
Day 68°
Night 64°
49

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