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