S
M
T
W
T
F
S
29
50°
39°
30
54°
40°
1
56°
41°
2
55°
40°
3
57°
39°
4
49°
36°
5
53°
36°
6
53°
38°
7
54°
36°
8
46°
32°
9
44°
29°
10
42°
29°
11
42°
35°
12
43°
34°
13
45°
34°
14
40°
26°
15
43°
28°
16
43°
33°
17
46°
34°
18
43°
35°
19
51°
31°
20
48°
22°
21
42°
23°
22
37°
25°
23
36°
30°
24
40°
28°
25
51°
28°
26
47°
23°
27
40°
20°
28
37°
22°
29
38°
21°
30
40°
34°
31
49°
29°
1
53°
22°
2
43°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Newark
Newark's December 2026 forecast shows daily high temperatures ranging from 36° to 57°, with overnight lows between 20° and 41°. The average high for December is 46° with an average low of 31°. 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 Newark. See also: January | February | March.
