S
M
T
W
T
F
S
26
53°
42°
27
56°
42°
28
64°
39°
29
55°
39°
30
61°
43°
1
63°
42°
2
56°
39°
3
63°
45°
4
67°
47°
5
68°
48°
6
68°
48°
7
69°
50°
8
69°
50°
9
70°
46°
10
59°
45°
11
59°
44°
12
60°
47°
13
69°
48°
14
61°
46°
15
65°
47°
16
70°
51°
17
72°
50°
18
69°
39°
19
69°
40°
20
63°
42°
21
65°
40°
22
64°
43°
23
65°
44°
24
62°
47°
25
66°
53°
26
74°
46°
27
70°
51°
28
67°
56°
29
76°
52°
30
80°
45°
31
69°
54°
1
73°
48°
2
75°
55°
3
78°
56°
4
79°
48°
5
78°
46°
6
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Pewaukee
Pewaukee's May 2026 forecast shows daily high temperatures ranging from 53° to 80°, with overnight lows between 39° and 56°. The average high for May is 67° with an average low of 46°. 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 Pewaukee. See also: June | July | August.
