S
M
T
W
T
F
S
26
65°
31°
27
60°
44°
28
56°
34°
29
50°
33°
30
42°
30°
1
42°
23°
2
60°
19°
3
71°
37°
4
73°
42°
5
49°
31°
6
44°
28°
7
51°
31°
8
63°
28°
9
59°
28°
10
49°
24°
11
55°
20°
12
65°
35°
13
61°
33°
14
71°
28°
15
84°
49°
16
81°
42°
17
54°
38°
18
81°
50°
19
71°
44°
20
60°
33°
21
58°
35°
22
63°
43°
23
60°
48°
24
72°
47°
25
81°
55°
26
83°
53°
27
81°
51°
28
75°
50°
29
74°
52°
30
74°
53°
31
77°
50°
1
75°
53°
2
71°
51°
3
76°
50°
4
76°
51°
5
74°
46°
6
66°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Iron Mountain
Iron Mountain's May 2026 forecast shows daily high temperatures ranging from 58° to 83°, with overnight lows between 35° and 55°. The average high for May is 73° 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 Iron Mountain. See also: June | July | August.
