S
M
T
W
T
F
S
26
58°
42°
27
55°
50°
28
54°
40°
29
62°
36°
30
68°
50°
1
56°
47°
2
64°
49°
3
82°
49°
4
61°
52°
5
59°
54°
6
57°
52°
7
59°
46°
8
59°
45°
9
70°
46°
10
62°
50°
11
68°
51°
12
65°
50°
13
60°
52°
14
57°
48°
15
55°
45°
16
56°
46°
17
61°
40°
18
62°
47°
19
62°
47°
20
61°
48°
21
69°
47°
22
61°
53°
23
60°
49°
24
62°
54°
25
55°
50°
26
62°
52°
27
63°
53°
28
64°
52°
29
59°
45°
30
58°
44°
31
60°
43°
1
62°
46°
2
68°
48°
3
68°
48°
4
67°
47°
5
61°
49°
6
59°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cannon Beach
Cannon Beach's May 2026 forecast shows daily high temperatures ranging from 55° to 68°, with overnight lows between 43° and 54°. The average high for May is 62° with an average low of 48°. 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 Cannon Beach. See also: June | July | August.