S
M
T
W
T
F
S
26
77°
62°
27
83°
60°
28
77°
60°
29
76°
64°
30
78°
60°
31
83°
61°
1
81°
60°
2
81°
56°
3
76°
55°
4
75°
55°
5
74°
54°
6
75°
55°
7
76°
56°
8
78°
56°
9
81°
60°
10
81°
62°
11
82°
63°
12
80°
64°
13
83°
64°
14
84°
60°
15
84°
61°
16
81°
55°
17
81°
53°
18
74°
54°
19
75°
57°
20
74°
60°
21
79°
60°
22
79°
61°
23
81°
60°
24
82°
52°
25
78°
53°
26
74°
50°
27
71°
51°
28
72°
52°
29
80°
54°
30
81°
53°
31
74°
51°
1
Hist. Avg.
76°
55°
2
Hist. Avg.
76°
55°
3
Hist. Avg.
76°
55°
4
Hist. Avg.
76°
54°
5
Hist. Avg.
75°
54°
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 71° to 84°, with overnight lows between 50° and 64°. The average high for August is 78° with an average low of 57°. 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.
