S
M
T
W
T
F
S
26
63°
39°
27
55°
46°
28
59°
43°
29
48°
37°
30
46°
34°
1
45°
27°
2
59°
27°
3
68°
43°
4
68°
41°
5
46°
34°
6
46°
32°
7
50°
28°
8
64°
32°
9
60°
34°
10
52°
30°
11
58°
37°
12
57°
41°
13
56°
38°
14
62°
46°
15
67°
49°
16
67°
48°
17
68°
47°
18
68°
47°
19
68°
50°
20
70°
51°
21
68°
49°
22
79°
58°
23
69°
50°
24
73°
53°
25
74°
55°
26
75°
55°
27
74°
54°
28
74°
54°
29
73°
53°
30
66°
50°
31
66°
46°
1
67°
48°
2
66°
54°
3
68°
56°
4
69°
55°
5
75°
55°
6
70°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mosinee
Mosinee's May 2026 forecast shows daily high temperatures ranging from 52° to 79°, with overnight lows between 30° and 58°. The average high for May is 68° 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 Mosinee. See also: June | July | August.