S
M
T
W
T
F
S
26
53°
33°
27
48°
37°
28
60°
37°
29
48°
31°
30
41°
32°
1
44°
30°
2
45°
30°
3
52°
34°
4
68°
36°
5
48°
35°
6
43°
33°
7
46°
28°
8
53°
35°
9
56°
39°
10
49°
34°
11
48°
32°
12
48°
37°
13
50°
37°
14
61°
35°
15
70°
46°
16
66°
46°
17
55°
41°
18
58°
53°
19
68°
37°
20
49°
36°
21
51°
40°
22
50°
46°
23
51°
45°
24
55°
47°
25
58°
49°
26
61°
51°
27
61°
50°
28
62°
52°
29
63°
50°
30
62°
51°
31
61°
58°
1
64°
52°
2
62°
52°
3
61°
50°
4
62°
48°
5
62°
53°
6
66°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mackinac Bridge
Mackinac Bridge's May 2026 forecast shows daily high temperatures ranging from 49° to 68°, with overnight lows between 36° and 58°. The average high for May is 59° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Mackinac Bridge. See also: June | July | August.
