S
M
T
W
T
F
S
27
40°
11°
28
37°
5°
29
34°
7°
30
35°
4°
31
32°
2°
1
29°
15°
2
33°
17°
3
37°
9°
4
39°
10°
5
35°
5°
6
34°
4°
7
32°
6°
8
33°
9°
9
35°
14°
10
36°
9°
11
38°
5°
12
35°
7°
13
32°
5°
14
34°
8°
15
35°
9°
16
36°
7°
17
33°
7°
18
32°
8°
19
33°
9°
20
41°
16°
21
40°
20°
22
41°
12°
23
39°
10°
24
38°
9°
25
34°
10°
26
33°
8°
27
36°
9°
28
35°
18°
29
36°
19°
30
39°
13°
31
Hist. Avg.
44°
17°
1
Hist. Avg.
44°
17°
2
Hist. Avg.
44°
17°
3
Hist. Avg.
44°
17°
4
Hist. Avg.
45°
17°
5
Hist. Avg.
45°
18°
6
Hist. Avg.
45°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Oshkosh
Oshkosh's January 2027 forecast shows daily high temperatures ranging from 29° to 41°, with overnight lows between 2° and 20°. The average high for January is 35° with an average low of 10°. 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 Oshkosh. See also: February | March | April.
