S
M
T
W
T
F
S
26
52°
40°
27
63°
42°
28
65°
52°
29
56°
39°
30
47°
35°
1
43°
34°
2
51°
34°
3
68°
45°
4
80°
49°
5
58°
42°
6
54°
37°
7
52°
36°
8
63°
34°
9
69°
42°
10
62°
37°
11
48°
36°
12
73°
35°
13
58°
42°
14
63°
39°
15
76°
50°
16
84°
61°
17
70°
46°
18
84°
49°
19
79°
53°
20
56°
44°
21
50°
41°
22
59°
46°
23
61°
49°
24
73°
53°
25
84°
53°
26
86°
64°
27
71°
54°
28
59°
48°
29
74°
46°
30
63°
50°
31
63°
50°
1
65°
53°
2
68°
50°
3
71°
58°
4
82°
64°
5
81°
62°
6
74°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Milwaukee
Milwaukee's May 2026 forecast shows daily high temperatures ranging from 63° to 82°, with overnight lows between 50° and 64°. The average high for May is 71° with an average low of 56°. 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 Milwaukee. See also: June | July | August.
