S
M
T
W
T
F
S
27
60°
54°
28
64°
54°
29
65°
53°
30
66°
53°
1
66°
51°
2
57°
50°
3
57°
50°
4
63°
46°
5
58°
46°
6
54°
42°
7
53°
44°
8
57°
51°
9
63°
50°
10
64°
51°
11
64°
52°
12
63°
47°
13
64°
40°
14
62°
42°
15
55°
43°
16
54°
47°
17
60°
44°
18
59°
48°
19
59°
47°
20
60°
45°
21
62°
43°
22
62°
35°
23
58°
31°
24
47°
36°
25
48°
35°
26
49°
35°
27
45°
43°
28
54°
45°
29
56°
46°
30
57°
38°
31
56°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mackinaw City
Mackinaw City's October 2026 forecast shows daily high temperatures ranging from 45° to 66°, with overnight lows between 31° and 54°. The average high for October is 58° with an average low of 45°. 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 Mackinaw City. See also: November | December | January.