S
M
T
W
T
F
S
29
48°
36°
30
50°
38°
1
51°
37°
2
50°
38°
3
52°
36°
4
50°
35°
5
50°
35°
6
48°
36°
7
50°
34°
8
45°
33°
9
42°
33°
10
42°
32°
11
43°
33°
12
44°
32°
13
43°
28°
14
43°
21°
15
38°
22°
16
34°
25°
17
36°
23°
18
35°
30°
19
42°
29°
20
45°
28°
21
40°
22°
22
37°
24°
23
36°
19°
24
36°
27°
25
37°
22°
26
43°
17°
27
35°
19°
28
31°
19°
29
34°
17°
30
32°
21°
31
34°
28°
1
46°
25°
2
44°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Middleton
Middleton's December 2026 forecast shows daily high temperatures ranging from 31° to 52°, with overnight lows between 17° and 38°. The average high for December is 42° 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 Middleton. See also: January | February | March.
