S
M
T
W
T
F
S
29
42°
30°
30
42°
29°
1
40°
28°
2
39°
28°
3
38°
27°
4
41°
28°
5
38°
27°
6
35°
26°
7
32°
19°
8
27°
18°
9
29°
21°
10
36°
25°
11
37°
25°
12
38°
24°
13
34°
25°
14
28°
22°
15
30°
20°
16
33°
22°
17
34°
23°
18
33°
22°
19
32°
18°
20
30°
11°
21
30°
16°
22
23°
18°
23
32°
21°
24
30°
18°
25
33°
11°
26
29°
13°
27
23°
15°
28
26°
12°
29
28°
14°
30
24°
17°
31
27°
10°
1
30°
6°
2
20°
5°
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 20° to 42°, with overnight lows between 5° and 30°. The average high for December is 32° 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 Appleton. See also: January | February | March.
