S
M
T
W
T
F
S
30
80°
54°
31
77°
64°
1
87°
68°
2
70°
66°
3
87°
66°
4
86°
61°
5
81°
59°
6
77°
51°
7
82°
54°
8
82°
61°
9
83°
64°
10
84°
58°
11
78°
53°
12
79°
55°
13
79°
55°
14
83°
58°
15
86°
57°
16
84°
49°
17
76°
51°
18
72°
50°
19
79°
54°
20
80°
56°
21
79°
53°
22
78°
55°
23
72°
56°
24
77°
52°
25
75°
51°
26
77°
55°
27
77°
54°
28
73°
49°
29
67°
46°
30
68°
48°
1
67°
44°
2
66°
49°
3
65°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Branchburg Township
Branchburg Township's September 2026 forecast shows daily high temperatures ranging from 65° to 87°, with overnight lows between 44° and 66°. The average high for September is 77° with an average low of 54°. 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 Branchburg Township. See also: October | November | December.
