S
M
T
W
T
F
S
30
81°
51°
31
83°
52°
1
70°
58°
2
73°
62°
3
77°
61°
4
84°
63°
5
77°
56°
6
74°
49°
7
82°
44°
8
79°
51°
9
72°
49°
10
86°
60°
11
76°
47°
12
78°
41°
13
68°
59°
14
70°
47°
15
72°
39°
16
81°
50°
17
74°
62°
18
77°
44°
19
67°
45°
20
60°
52°
21
67°
45°
22
63°
41°
23
63°
43°
24
66°
45°
25
67°
44°
26
70°
44°
27
73°
47°
28
69°
45°
29
71°
46°
30
70°
42°
1
63°
44°
2
70°
44°
3
63°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Henniker Junction
Henniker Junction's September 2026 forecast shows daily high temperatures ranging from 60° to 77°, with overnight lows between 41° and 62°. The average high for September is 68° with an average low of 46°. 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 Henniker Junction. See also: October | November | December.