S
M
T
W
T
F
S
29
50°
30°
30
55°
26°
1
50°
25°
2
42°
26°
3
46°
28°
4
49°
30°
5
50°
34°
6
53°
36°
7
54°
38°
8
56°
34°
9
56°
33°
10
52°
33°
11
49°
25°
12
47°
24°
13
41°
26°
14
42°
23°
15
41°
22°
16
39°
19°
17
38°
20°
18
36°
20°
19
37°
19°
20
37°
23°
21
41°
31°
22
46°
32°
23
51°
29°
24
49°
25°
25
44°
16°
26
39°
15°
27
36°
25°
28
36°
20°
29
44°
16°
30
36°
15°
31
32°
19°
1
34°
25°
2
39°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Trenton
Trenton's December 2026 forecast shows daily high temperatures ranging from 32° to 56°, with overnight lows between 15° and 38°. The average high for December is 44° with an average low of 25°. 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 Trenton. See also: January | February | March.
