S
M
T
W
T
F
S
26
87°
64°
27
84°
69°
28
78°
60°
29
82°
55°
30
87°
60°
31
77°
65°
1
76°
63°
2
75°
57°
3
79°
58°
4
83°
63°
5
79°
61°
6
81°
58°
7
80°
60°
8
82°
62°
9
81°
61°
10
78°
59°
11
78°
59°
12
77°
58°
13
78°
61°
14
78°
57°
15
73°
60°
16
74°
62°
17
79°
63°
18
81°
62°
19
81°
62°
20
80°
61°
21
80°
63°
22
81°
63°
23
81°
62°
24
80°
62°
25
80°
61°
26
79°
60°
27
78°
60°
28
78°
61°
29
80°
60°
30
81°
61°
31
81°
60°
1
78°
59°
2
75°
59°
3
79°
60°
4
79°
60°
5
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Green Bay
Green Bay's August 2026 forecast shows daily high temperatures ranging from 73° to 83°, with overnight lows between 57° and 63°. The average high for August is 79° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Green Bay. See also: September | October | November.
