S
M
T
W
T
F
S
27
74°
54°
28
74°
53°
29
71°
52°
30
70°
53°
1
71°
53°
2
71°
52°
3
70°
51°
4
69°
50°
5
69°
50°
6
68°
51°
7
69°
51°
8
69°
50°
9
68°
51°
10
68°
50°
11
67°
48°
12
65°
46°
13
64°
44°
14
58°
45°
15
55°
43°
16
63°
46°
17
57°
43°
18
63°
38°
19
63°
36°
20
50°
36°
21
52°
38°
22
56°
36°
23
51°
34°
24
49°
37°
25
48°
34°
26
48°
32°
27
47°
29°
28
46°
31°
29
46°
33°
30
47°
32°
31
46°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Green Bay
Green Bay's October 2026 forecast shows daily high temperatures ranging from 46° to 74°, with overnight lows between 25° and 54°. The average high for October is 61° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Green Bay. See also: November | December | January.