S
M
T
W
T
F
S
26
90°
70°
27
90°
71°
28
91°
71°
29
85°
70°
30
90°
71°
31
91°
71°
1
90°
70°
2
91°
71°
3
91°
72°
4
92°
71°
5
91°
71°
6
88°
70°
7
89°
71°
8
88°
68°
9
83°
65°
10
83°
64°
11
84°
65°
12
83°
69°
13
84°
69°
14
84°
68°
15
88°
70°
16
88°
68°
17
89°
63°
18
85°
64°
19
86°
67°
20
85°
68°
21
89°
69°
22
88°
68°
23
90°
68°
24
88°
66°
25
87°
66°
26
82°
64°
27
82°
65°
28
83°
65°
29
81°
66°
30
81°
61°
31
82°
66°
1
86°
66°
2
86°
65°
3
85°
66°
4
86°
59°
5
80°
58°
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 80° to 92°, with overnight lows between 58° and 72°. The average high for August is 87° with an average low of 67°. 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.
