S
M
T
W
T
F
S
29
45°
34°
30
45°
36°
1
55°
32°
2
51°
35°
3
47°
32°
4
57°
28°
5
55°
28°
6
40°
29°
7
42°
29°
8
43°
27°
9
43°
25°
10
41°
25°
11
37°
26°
12
38°
27°
13
39°
26°
14
40°
27°
15
39°
29°
16
40°
29°
17
40°
28°
18
41°
36°
19
42°
34°
20
44°
29°
21
43°
27°
22
39°
25°
23
38°
25°
24
37°
28°
25
38°
27°
26
39°
28°
27
36°
28°
28
38°
27°
29
36°
23°
30
37°
23°
31
40°
18°
1
Hist. Avg.
41°
30°
2
Hist. Avg.
40°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Jersey City
Jersey City's December 2026 forecast shows daily high temperatures ranging from 36° to 57°, with overnight lows between 18° and 36°. 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 Jersey City. See also: January | February | March.