S
M
T
W
T
F
S
29
45°
30°
30
52°
27°
1
53°
24°
2
47°
32°
3
52°
24°
4
51°
23°
5
39°
21°
6
38°
20°
7
37°
22°
8
38°
26°
9
40°
32°
10
49°
29°
11
49°
26°
12
40°
25°
13
38°
26°
14
37°
23°
15
38°
18°
16
35°
16°
17
34°
19°
18
33°
29°
19
40°
28°
20
41°
22°
21
46°
23°
22
35°
32°
23
47°
33°
24
47°
28°
25
46°
27°
26
45°
26°
27
40°
28°
28
43°
29°
29
44°
29°
30
44°
31°
31
47°
28°
1
47°
26°
2
46°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Naugatuck
Naugatuck's December 2026 forecast shows daily high temperatures ranging from 33° to 53°, with overnight lows between 16° and 33°. The average high for December is 43° with an average low of 26°. 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 Naugatuck. See also: January | February | March.