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
78°
64°
2
76°
59°
3
81°
54°
4
83°
61°
5
71°
58°
6
81°
56°
7
82°
60°
8
81°
58°
9
75°
57°
10
82°
62°
11
83°
62°
12
83°
66°
13
78°
65°
14
79°
60°
15
83°
65°
16
84°
62°
17
81°
58°
18
79°
59°
19
77°
53°
20
80°
49°
21
73°
60°
22
77°
55°
23
73°
48°
24
76°
51°
25
78°
62°
26
78°
60°
27
78°
56°
28
76°
56°
29
75°
57°
30
75°
58°
31
76°
57°
1
76°
54°
2
77°
55°
3
75°
56°
4
76°
55°
5
73°
53°
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 78°, with overnight lows between 48° and 62°. The average high for August is 76° 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 August weather will actually feel in Green Bay. See also: September | October | November.
