S
M
T
W
T
F
S
29
45°
29°
30
44°
27°
1
43°
26°
2
43°
26°
3
44°
29°
4
46°
30°
5
46°
32°
6
44°
35°
7
43°
34°
8
42°
34°
9
42°
30°
10
41°
29°
11
54°
35°
12
48°
35°
13
53°
31°
14
54°
28°
15
44°
26°
16
41°
27°
17
42°
28°
18
43°
34°
19
49°
35°
20
51°
36°
21
52°
35°
22
53°
34°
23
51°
36°
24
52°
37°
25
55°
30°
26
55°
28°
27
48°
26°
28
42°
29°
29
43°
33°
30
49°
34°
31
49°
36°
1
52°
38°
2
52°
31°
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 41° to 55°, with overnight lows between 26° and 38°. The average high for December is 47° 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 Newark. See also: January | February | March.
