S
M
T
W
T
F
S
29
40°
25°
30
45°
28°
1
43°
28°
2
42°
27°
3
42°
25°
4
40°
28°
5
44°
29°
6
43°
26°
7
45°
21°
8
44°
20°
9
34°
21°
10
37°
23°
11
39°
24°
12
35°
24°
13
35°
25°
14
38°
23°
15
42°
18°
16
41°
18°
17
30°
17°
18
34°
15°
19
29°
19°
20
33°
21°
21
36°
23°
22
38°
22°
23
39°
17°
24
34°
13°
25
28°
14°
26
29°
22°
27
36°
19°
28
37°
17°
29
32°
13°
30
29°
18°
31
31°
3°
1
32°
1°
2
18°
5°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Winnebago
Winnebago's December 2026 forecast shows daily high temperatures ranging from 18° to 45°, with overnight lows between 1° and 29°. The average high for December is 36° with an average low of 20°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Winnebago. See also: January | February | March.
