S
M
T
W
T
F
S
29
68°
45°
30
73°
50°
31
77°
54°
1
79°
59°
2
77°
61°
3
79°
63°
4
79°
61°
5
81°
68°
6
70°
59°
7
68°
55°
8
66°
50°
9
72°
46°
10
N/A
11
80°
54°
12
77°
60°
13
79°
59°
14
83°
61°
15
82°
63°
16
84°
65°
17
85°
64°
18
86°
63°
19
86°
63°
20
82°
61°
21
80°
63°
22
79°
65°
23
83°
66°
24
82°
64°
25
81°
61°
26
80°
60°
27
79°
60°
28
79°
61°
29
76°
60°
30
79°
60°
1
77°
61°
2
78°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Green Bay
Green Bay's April 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 54° and 66°. The average high for April is 81° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Green Bay. See also: May | June | July.