S
M
T
W
T
F
S
29
48°
37°
30
48°
37°
1
43°
36°
2
44°
36°
3
48°
37°
4
49°
37°
5
49°
35°
6
43°
32°
7
38°
34°
8
41°
25°
9
33°
26°
10
36°
28°
11
37°
28°
12
37°
32°
13
40°
32°
14
42°
31°
15
43°
33°
16
43°
32°
17
41°
32°
18
40°
31°
19
41°
31°
20
38°
30°
21
31°
25°
22
32°
26°
23
36°
19°
24
33°
14°
25
30°
12°
26
26°
16°
27
28°
21°
28
36°
15°
29
35°
19°
30
39°
13°
31
39°
13°
1
24°
9°
2
23°
10°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Appleton
Appleton's December 2026 forecast shows daily high temperatures ranging from 23° to 49°, with overnight lows between 9° and 37°. The average high for December is 38° with an average low of 26°. 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 Appleton. See also: January | February | March.
