S
M
T
W
T
F
S
29
54°
33°
30
45°
31°
1
44°
34°
2
44°
38°
3
46°
34°
4
47°
31°
5
44°
29°
6
43°
28°
7
42°
27°
8
38°
26°
9
39°
25°
10
38°
24°
11
36°
32°
12
44°
29°
13
45°
36°
14
47°
38°
15
Hist. Avg.
45°
31°
16
Hist. Avg.
45°
31°
17
Hist. Avg.
44°
31°
18
Hist. Avg.
44°
31°
19
Hist. Avg.
44°
30°
20
Hist. Avg.
44°
30°
21
Hist. Avg.
43°
30°
22
Hist. Avg.
43°
30°
23
Hist. Avg.
43°
30°
24
Hist. Avg.
43°
29°
25
Hist. Avg.
42°
29°
26
Hist. Avg.
42°
29°
27
Hist. Avg.
42°
29°
28
Hist. Avg.
42°
28°
29
Hist. Avg.
42°
28°
30
Hist. Avg.
41°
28°
31
Hist. Avg.
41°
28°
1
Hist. Avg.
41°
28°
2
Hist. Avg.
41°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Newark
Newark's December 2026 forecast shows daily high temperatures ranging from 36° to 54°, with overnight lows between 24° and 38°. The average high for December is 44° 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.