S
M
T
W
T
F
S
26
83°
58°
27
85°
60°
28
82°
63°
29
85°
64°
30
79°
64°
1
67°
54°
2
73°
46°
3
76°
42°
4
80°
46°
5
81°
48°
6
87°
66°
7
79°
65°
8
75°
62°
9
69°
63°
10
83°
61°
11
86°
64°
12
69°
61°
13
82°
59°
14
83°
55°
15
83°
49°
16
88°
54°
17
86°
62°
18
88°
64°
19
90°
66°
20
89°
69°
21
88°
68°
22
87°
70°
23
86°
67°
24
86°
70°
25
79°
70°
26
79°
71°
27
83°
72°
28
83°
70°
29
84°
72°
30
79°
71°
31
79°
66°
1
80°
67°
2
81°
65°
3
82°
65°
4
83°
67°
5
85°
68°
6
87°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Green Bay
Green Bay's May 2026 forecast shows daily high temperatures ranging from 79° to 87°, with overnight lows between 65° and 72°. The average high for May is 82° with an average low of 69°. 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 Green Bay. See also: June | July | August.
