S
M
T
W
T
F
S
30
88°
60°
31
79°
59°
1
79°
60°
2
80°
65°
3
79°
60°
4
80°
67°
5
84°
66°
6
85°
59°
7
82°
59°
8
77°
58°
9
77°
57°
10
76°
64°
11
79°
57°
12
79°
58°
13
74°
57°
14
75°
63°
15
78°
64°
16
81°
54°
17
82°
53°
18
72°
53°
19
71°
54°
20
72°
55°
21
71°
54°
22
70°
53°
23
69°
58°
24
71°
58°
25
71°
57°
26
76°
59°
27
76°
53°
28
77°
50°
29
69°
50°
30
69°
57°
1
68°
58°
2
73°
55°
3
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Perth Amboy Junction
Perth Amboy Junction's September 2026 forecast shows daily high temperatures ranging from 68° to 88°, with overnight lows between 50° and 67°. The average high for September is 76° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Perth Amboy Junction. See also: October | November | December.
