S
M
T
W
T
F
S
30
78°
59°
31
77°
59°
1
77°
64°
2
78°
67°
3
78°
67°
4
85°
68°
5
84°
66°
6
82°
59°
7
79°
59°
8
78°
58°
9
77°
57°
10
75°
57°
11
75°
58°
12
74°
57°
13
78°
62°
14
80°
63°
15
78°
62°
16
75°
58°
17
74°
59°
18
75°
61°
19
76°
54°
20
74°
56°
21
74°
54°
22
78°
52°
23
72°
52°
24
71°
53°
25
71°
58°
26
72°
51°
27
72°
57°
28
71°
57°
29
69°
49°
30
69°
52°
1
68°
57°
2
74°
54°
3
72°
49°
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 85°, with overnight lows between 49° and 68°. The average high for September is 75° 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.
