S
M
T
W
T
F
S
26
59°
49°
27
64°
48°
28
70°
44°
29
74°
48°
30
75°
46°
1
71°
50°
2
60°
52°
3
62°
53°
4
64°
47°
5
64°
54°
6
71°
51°
7
69°
51°
8
72°
51°
9
78°
47°
10
76°
51°
11
80°
47°
12
69°
49°
13
75°
48°
14
81°
49°
15
82°
53°
16
77°
56°
17
74°
52°
18
85°
61°
19
88°
57°
20
84°
53°
21
85°
48°
22
68°
47°
23
66°
53°
24
64°
53°
25
66°
49°
26
73°
47°
27
77°
52°
28
71°
52°
29
72°
48°
30
79°
44°
31
84°
46°
1
84°
48°
2
80°
49°
3
82°
50°
4
80°
51°
5
79°
50°
6
81°
49°
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 66° to 84°, with overnight lows between 44° and 52°. The average high for May is 78° with an average low of 49°. 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.
