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
79°
60°
26
82°
60°
27
73°
49°
28
65°
47°
29
67°
51°
30
66°
50°
31
71°
52°
1
74°
56°
2
75°
55°
3
78°
57°
4
77°
58°
5
76°
57°
6
75°
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 65° to 82°, with overnight lows between 47° and 60°. The average high for May is 74° with an average low of 55°. 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.
