S
M
T
W
T
F
S
26
64°
41°
27
57°
47°
28
60°
42°
29
50°
38°
30
47°
28°
1
48°
28°
2
57°
39°
3
61°
40°
4
67°
35°
5
50°
36°
6
51°
35°
7
46°
34°
8
54°
38°
9
60°
40°
10
57°
38°
11
62°
41°
12
60°
42°
13
70°
43°
14
59°
42°
15
60°
42°
16
61°
41°
17
61°
49°
18
62°
50°
19
70°
50°
20
72°
51°
21
68°
47°
22
61°
46°
23
62°
42°
24
61°
42°
25
64°
46°
26
62°
49°
27
64°
51°
28
65°
47°
29
64°
47°
30
70°
48°
31
65°
47°
1
64°
48°
2
66°
48°
3
66°
47°
4
67°
47°
5
67°
46°
6
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wausau
Wausau's May 2026 forecast shows daily high temperatures ranging from 46° to 72°, with overnight lows between 28° and 51°. The average high for May is 62° with an average low of 43°. 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 Wausau. See also: June | July | August.