S
M
T
W
T
F
S
29
47°
33°
30
46°
31°
1
45°
30°
2
45°
32°
3
46°
36°
4
47°
39°
5
49°
41°
6
50°
40°
7
47°
35°
8
45°
36°
9
45°
33°
10
44°
33°
11
54°
40°
12
55°
38°
13
58°
30°
14
59°
28°
15
44°
30°
16
43°
26°
17
43°
31°
18
44°
37°
19
53°
38°
20
54°
39°
21
56°
38°
22
56°
36°
23
54°
38°
24
56°
38°
25
58°
31°
26
58°
27°
27
46°
29°
28
43°
34°
29
47°
36°
30
53°
36°
31
52°
38°
1
55°
40°
2
56°
33°
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 43° to 59°, with overnight lows between 26° and 41°. The average high for December is 50° with an average low of 35°. 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.
