S
M
T
W
T
F
S
29
64°
43°
30
64°
44°
1
63°
41°
2
62°
44°
3
61°
40°
4
54°
36°
5
54°
40°
6
56°
43°
7
56°
36°
8
55°
38°
9
52°
42°
10
51°
34°
11
52°
33°
12
50°
34°
13
51°
33°
14
50°
32°
15
51°
33°
16
51°
33°
17
52°
34°
18
55°
35°
19
56°
39°
20
56°
38°
21
55°
37°
22
56°
37°
23
54°
33°
24
51°
32°
25
50°
32°
26
51°
33°
27
53°
34°
28
56°
37°
29
59°
38°
30
58°
37°
31
59°
42°
1
58°
43°
2
57°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Wilton
Wilton's December 2026 forecast shows daily high temperatures ranging from 50° to 64°, with overnight lows between 32° and 45°. The average high for December is 55° with an average low of 37°. 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 Wilton. See also: January | February | March.
