S
M
T
W
T
F
S
27
52°
30°
28
51°
27°
29
42°
26°
30
41°
27°
31
42°
25°
1
44°
24°
2
40°
27°
3
40°
28°
4
42°
23°
5
40°
14°
6
39°
16°
7
31°
22°
8
34°
24°
9
39°
31°
10
46°
32°
11
47°
30°
12
46°
27°
13
42°
23°
14
40°
22°
15
33°
25°
16
39°
26°
17
43°
21°
18
42°
24°
19
40°
30°
20
37°
17°
21
Hist. Avg.
39°
24°
22
Hist. Avg.
39°
24°
23
Hist. Avg.
40°
24°
24
Hist. Avg.
40°
24°
25
Hist. Avg.
40°
24°
26
Hist. Avg.
40°
24°
27
Hist. Avg.
40°
24°
28
Hist. Avg.
40°
24°
29
Hist. Avg.
40°
24°
30
Hist. Avg.
40°
24°
31
Hist. Avg.
40°
24°
1
Hist. Avg.
40°
24°
2
Hist. Avg.
40°
24°
3
Hist. Avg.
41°
24°
4
Hist. Avg.
41°
24°
5
Hist. Avg.
41°
24°
6
Hist. Avg.
41°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Trenton
Trenton's January 2027 forecast shows daily high temperatures ranging from 31° to 52°, with overnight lows between 14° and 32°. The average high for January is 41° 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 January weather will actually feel in Trenton. See also: February | March | April.