S
M
T
W
T
F
S
30
80°
54°
31
77°
64°
1
87°
68°
2
74°
68°
3
87°
69°
4
86°
60°
5
84°
59°
6
79°
56°
7
78°
57°
8
80°
59°
9
81°
62°
10
85°
61°
11
81°
56°
12
78°
58°
13
78°
61°
14
79°
59°
15
76°
55°
16
73°
59°
17
74°
51°
18
72°
50°
19
78°
54°
20
79°
55°
21
78°
53°
22
77°
56°
23
71°
56°
24
76°
53°
25
73°
51°
26
76°
56°
27
76°
55°
28
75°
49°
29
67°
46°
30
68°
48°
1
67°
45°
2
66°
49°
3
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hillsborough Township
Hillsborough Township's September 2026 forecast shows daily high temperatures ranging from 64° to 87°, with overnight lows between 45° and 69°. The average high for September is 76° with an average low of 55°. 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 Hillsborough Township. See also: October | November | December.
