S
M
T
W
T
F
S
26
94°
68°
27
89°
68°
28
86°
67°
29
92°
69°
30
94°
68°
31
89°
67°
1
87°
68°
2
91°
68°
3
89°
65°
4
93°
67°
5
96°
64°
6
94°
67°
7
95°
65°
8
92°
60°
9
85°
66°
10
92°
63°
11
93°
59°
12
85°
58°
13
84°
57°
14
83°
61°
15
83°
59°
16
84°
56°
17
84°
58°
18
85°
58°
19
84°
63°
20
86°
65°
21
92°
65°
22
92°
64°
23
93°
64°
24
93°
59°
25
90°
55°
26
81°
54°
27
82°
55°
28
83°
56°
29
86°
57°
30
81°
60°
31
82°
62°
1
82°
61°
2
89°
61°
3
89°
54°
4
83°
52°
5
78°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Trenton
Trenton's August 2026 forecast shows daily high temperatures ranging from 78° to 96°, with overnight lows between 52° and 69°. The average high for August is 88° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Trenton. See also: September | October | November.