S
M
T
W
T
F
S
26
59°
41°
27
69°
38°
28
62°
40°
29
65°
48°
30
65°
43°
1
62°
46°
2
61°
41°
3
62°
41°
4
67°
49°
5
73°
49°
6
73°
56°
7
67°
49°
8
62°
45°
9
66°
48°
10
64°
47°
11
66°
47°
12
65°
46°
13
67°
48°
14
66°
46°
15
66°
51°
16
67°
51°
17
67°
50°
18
68°
55°
19
76°
56°
20
74°
55°
21
71°
56°
22
76°
54°
23
72°
54°
24
76°
53°
25
71°
49°
26
70°
53°
27
69°
57°
28
74°
58°
29
78°
58°
30
77°
57°
31
76°
56°
1
74°
52°
2
70°
51°
3
69°
51°
4
72°
52°
5
71°
52°
6
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Trenton
Trenton's May 2026 forecast shows daily high temperatures ranging from 61° to 78°, with overnight lows between 41° and 58°. The average high for May is 70° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Trenton. See also: June | July | August.
