S
M
T
W
T
F
S
29
42°
32°
30
41°
30°
1
41°
29°
2
40°
29°
3
41°
33°
4
42°
32°
5
44°
33°
6
42°
38°
7
40°
38°
8
41°
37°
9
41°
30°
10
39°
29°
11
50°
32°
12
48°
37°
13
43°
32°
14
49°
31°
15
42°
26°
16
38°
27°
17
37°
31°
18
39°
32°
19
44°
33°
20
44°
35°
21
47°
35°
22
48°
34°
23
48°
36°
24
47°
38°
25
50°
29°
26
51°
29°
27
48°
25°
28
36°
28°
29
36°
32°
30
45°
32°
31
45°
34°
1
47°
36°
2
48°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Commack
Commack's December 2026 forecast shows daily high temperatures ranging from 36° to 51°, with overnight lows between 25° and 38°. The average high for December is 44° with an average low of 32°. 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 Commack. See also: January | February | March.
