S
M
T
W
T
F
S
26
56°
39°
27
54°
49°
28
56°
43°
29
62°
37°
30
70°
44°
1
59°
49°
2
67°
50°
3
82°
49°
4
61°
54°
5
60°
53°
6
56°
51°
7
57°
48°
8
57°
49°
9
67°
51°
10
61°
53°
11
70°
52°
12
71°
51°
13
58°
52°
14
57°
49°
15
53°
47°
16
55°
44°
17
60°
49°
18
61°
50°
19
60°
52°
20
63°
52°
21
62°
46°
22
63°
45°
23
64°
47°
24
62°
45°
25
61°
45°
26
61°
46°
27
60°
47°
28
59°
46°
29
62°
45°
30
58°
42°
31
59°
43°
1
65°
49°
2
67°
50°
3
67°
49°
4
65°
49°
5
62°
45°
6
66°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Copalis Beach
Copalis Beach's May 2026 forecast shows daily high temperatures ranging from 55° to 67°, with overnight lows between 42° and 52°. The average high for May is 62° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Copalis Beach. See also: June | July | August.
