S
M
T
W
T
F
S
28
70°
51°
29
71°
51°
30
66°
53°
1
62°
54°
2
67°
52°
3
73°
57°
4
80°
62°
5
80°
65°
6
71°
50°
7
62°
46°
8
55°
38°
9
56°
38°
10
56°
48°
11
59°
52°
12
61°
53°
13
67°
54°
14
59°
46°
15
56°
43°
16
57°
39°
17
63°
50°
18
63°
57°
19
59°
46°
20
56°
46°
21
53°
45°
22
54°
41°
23
47°
39°
24
49°
37°
25
50°
32°
26
54°
37°
27
51°
38°
28
53°
44°
29
53°
41°
30
56°
38°
31
51°
39°
1
42°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mackinac Bridge
Mackinac Bridge's October 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for October is ° with an average low of °. 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 Mackinac Bridge. See also: November | December | January.