S
M
T
W
T
F
S
30
81°
60°
31
85°
63°
1
85°
63°
2
83°
62°
3
78°
58°
4
78°
55°
5
77°
54°
6
76°
54°
7
79°
61°
8
84°
55°
9
76°
53°
10
76°
54°
11
78°
49°
12
74°
52°
13
73°
51°
14
72°
50°
15
74°
52°
16
75°
53°
17
74°
52°
18
76°
50°
19
76°
49°
20
73°
48°
21
71°
48°
22
72°
49°
23
73°
51°
24
77°
48°
25
77°
53°
26
76°
53°
27
70°
51°
28
72°
49°
29
76°
46°
30
74°
45°
1
68°
48°
2
72°
53°
3
74°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hightstown
Hightstown's September 2026 forecast shows daily high temperatures ranging from 68° to 85°, with overnight lows between 43° and 63°. The average high for September is 76° with an average low of 52°. 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 Hightstown. See also: October | November | December.