S
M
T
W
T
F
S
27
63°
53°
28
67°
54°
29
67°
50°
30
66°
44°
1
65°
48°
2
60°
48°
3
63°
47°
4
61°
42°
5
58°
45°
6
60°
42°
7
54°
43°
8
60°
40°
9
55°
38°
10
50°
36°
11
49°
42°
12
49°
42°
13
55°
43°
14
56°
46°
15
58°
48°
16
59°
45°
17
57°
42°
18
56°
42°
19
49°
43°
20
54°
39°
21
54°
40°
22
53°
43°
23
52°
41°
24
54°
38°
25
51°
38°
26
45°
36°
27
44°
33°
28
42°
30°
29
41°
30°
30
40°
31°
31
42°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Copper Harbor
Copper Harbor's October 2026 forecast shows daily high temperatures ranging from 40° to 67°, with overnight lows between 30° and 54°. The average high for October is 55° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Copper Harbor. See also: November | December | January.