S
M
T
W
T
F
S
29
42°
26°
30
44°
29°
1
48°
34°
2
47°
31°
3
46°
32°
4
50°
36°
5
53°
27°
6
40°
25°
7
39°
29°
8
50°
36°
9
51°
34°
10
46°
35°
11
48°
35°
12
49°
32°
13
43°
27°
14
38°
23°
15
36°
21°
16
36°
23°
17
38°
27°
18
42°
32°
19
47°
32°
20
46°
34°
21
49°
32°
22
41°
28°
23
40°
28°
24
47°
34°
25
35°
20°
26
35°
23°
27
36°
24°
28
37°
31°
29
49°
26°
30
50°
24°
31
38°
24°
1
39°
21°
2
41°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Madison
Madison's December 2026 forecast shows daily high temperatures ranging from 35° to 53°, with overnight lows between 18° and 36°. The average high for December is 43° with an average low of 28°. 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 Madison. See also: January | February | March.
