S
M
T
W
T
F
S
26
43°
31°
27
42°
32°
28
44°
36°
29
47°
36°
30
46°
34°
1
48°
36°
2
50°
40°
3
50°
41°
4
55°
41°
5
58°
40°
6
49°
39°
7
56°
42°
8
60°
43°
9
60°
42°
10
55°
43°
11
56°
43°
12
54°
42°
13
55°
40°
14
51°
40°
15
54°
39°
16
57°
40°
17
58°
41°
18
60°
38°
19
61°
41°
20
58°
36°
21
57°
36°
22
56°
37°
23
54°
35°
24
57°
33°
25
55°
37°
26
57°
39°
27
59°
42°
28
65°
40°
29
61°
43°
30
62°
50°
31
65°
44°
1
64°
40°
2
59°
44°
3
60°
49°
4
66°
37°
5
66°
42°
6
57°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Munising
Munising's May 2026 forecast shows daily high temperatures ranging from 42° to 66°, with overnight lows between 31° and 50°. The average high for May is 56° with an average low of 40°. 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 Munising. See also: June | July | August.