S
M
T
W
T
F
S
27
33°
17°
28
29°
14°
29
25°
13°
30
25°
15°
31
27°
11°
1
27°
14°
2
26°
16°
3
29°
17°
4
29°
14°
5
30°
10°
6
27°
13°
7
23°
15°
8
25°
16°
9
31°
17°
10
32°
16°
11
32°
16°
12
31°
14°
13
30°
10°
14
24°
14°
15
26°
12°
16
29°
9°
17
24°
11°
18
25°
12°
19
31°
15°
20
18°
9°
21
31°
15°
22
28°
18°
23
Hist. Avg.
25°
10°
24
Hist. Avg.
25°
10°
25
Hist. Avg.
25°
10°
26
Hist. Avg.
25°
10°
27
Hist. Avg.
25°
10°
28
Hist. Avg.
25°
10°
29
Hist. Avg.
25°
10°
30
Hist. Avg.
25°
10°
31
Hist. Avg.
26°
10°
1
Hist. Avg.
26°
10°
2
Hist. Avg.
26°
10°
3
Hist. Avg.
26°
10°
4
Hist. Avg.
26°
11°
5
Hist. Avg.
26°
11°
6
Hist. Avg.
26°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Green Bay
Green Bay's January 2027 forecast shows daily high temperatures ranging from 18° to 33°, with overnight lows between 9° and 18°. The average high for January is 28° with an average low of 14°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Green Bay. See also: February | March | April.
