S
M
T
W
T
F
S
26
61°
50°
27
62°
52°
28
61°
53°
29
64°
55°
30
69°
57°
31
70°
55°
1
62°
49°
2
68°
50°
3
67°
54°
4
67°
56°
5
68°
57°
6
69°
58°
7
70°
56°
8
69°
51°
9
66°
50°
10
64°
50°
11
68°
55°
12
67°
50°
13
63°
50°
14
67°
52°
15
69°
58°
16
70°
58°
17
69°
51°
18
66°
51°
19
69°
54°
20
69°
50°
21
64°
57°
22
69°
54°
23
71°
52°
24
70°
53°
25
69°
56°
26
70°
54°
27
62°
55°
28
62°
52°
29
63°
48°
30
65°
53°
31
Hist. Avg.
69°
53°
1
Hist. Avg.
69°
53°
2
Hist. Avg.
69°
52°
3
Hist. Avg.
69°
52°
4
Hist. Avg.
69°
52°
5
Hist. Avg.
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Cannon Beach
Cannon Beach's August 2026 forecast shows daily high temperatures ranging from 61° to 71°, with overnight lows between 48° and 58°. The average high for August is 67° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Cannon Beach. See also: September | October | November.