S
M
T
W
T
F
S
26
80°
55°
27
65°
53°
28
67°
54°
29
75°
58°
30
79°
60°
31
75°
61°
1
67°
53°
2
68°
54°
3
78°
54°
4
72°
61°
5
69°
59°
6
82°
59°
7
81°
61°
8
75°
59°
9
N/A
10
72°
62°
11
72°
61°
12
70°
59°
13
70°
55°
14
70°
57°
15
70°
60°
16
68°
59°
17
71°
62°
18
72°
60°
19
71°
56°
20
67°
56°
21
67°
59°
22
70°
65°
23
76°
61°
24
72°
62°
25
75°
62°
26
76°
61°
27
76°
61°
28
72°
60°
29
67°
60°
30
67°
59°
31
69°
59°
1
69°
60°
2
68°
61°
3
74°
60°
4
70°
60°
5
71°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Copper Harbor
Copper Harbor's August 2026 forecast shows daily high temperatures ranging from 67° to 76°, with overnight lows between 55° and 65°. The average high for August is 71° with an average low of 60°. 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 Copper Harbor. See also: September | October | November.
