S
M
T
W
T
F
S
29
43°
30°
30
42°
29°
1
41°
28°
2
41°
28°
3
42°
31°
4
43°
31°
5
44°
32°
6
42°
36°
7
41°
38°
8
41°
38°
9
42°
29°
10
39°
28°
11
51°
33°
12
48°
37°
13
46°
32°
14
50°
30°
15
42°
26°
16
38°
27°
17
37°
30°
18
40°
32°
19
45°
34°
20
45°
36°
21
48°
36°
22
49°
35°
23
48°
36°
24
48°
39°
25
51°
30°
26
52°
28°
27
48°
26°
28
38°
29°
29
39°
33°
30
46°
33°
31
46°
35°
1
48°
37°
2
49°
32°
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 37° to 52°, with overnight lows between 26° and 39°. 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 Newark. See also: January | February | March.
