S
M
T
W
T
F
S
30
79°
55°
31
80°
68°
1
84°
67°
2
76°
68°
3
85°
67°
4
85°
64°
5
82°
60°
6
77°
58°
7
81°
59°
8
79°
58°
9
82°
61°
10
83°
61°
11
83°
58°
12
75°
54°
13
76°
55°
14
80°
56°
15
74°
56°
16
74°
60°
17
76°
53°
18
72°
52°
19
72°
51°
20
73°
54°
21
76°
59°
22
80°
59°
23
80°
58°
24
79°
56°
25
77°
54°
26
77°
56°
27
78°
57°
28
78°
57°
29
77°
53°
30
71°
49°
1
67°
47°
2
70°
52°
3
75°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Short Hills
Short Hills's September 2026 forecast shows daily high temperatures ranging from 67° to 85°, with overnight lows between 47° and 68°. The average high for September is 77° with an average low of 57°. 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 Short Hills. See also: October | November | December.