S
M
T
W
T
F
S
29
47°
36°
30
52°
32°
1
51°
26°
2
48°
22°
3
36°
25°
4
38°
30°
5
41°
25°
6
40°
23°
7
37°
30°
8
42°
25°
9
44°
22°
10
37°
18°
11
33°
15°
12
31°
16°
13
31°
18°
14
34°
13°
15
32°
15°
16
29°
15°
17
31°
18°
18
34°
13°
19
33°
11°
20
29°
17°
21
30°
21°
22
31°
18°
23
30°
15°
24
29°
23°
25
40°
23°
26
43°
16°
27
27°
17°
28
28°
16°
29
28°
24°
30
Hist. Avg.
32°
14°
31
Hist. Avg.
31°
13°
1
Hist. Avg.
31°
13°
2
Hist. Avg.
31°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Wilton
Wilton's December 2026 forecast shows daily high temperatures ranging from 27° to 52°, with overnight lows between 11° and 36°. The average high for December is 36° with an average low of 21°. 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.
