S
M
T
W
T
F
S
30
81°
57°
31
80°
56°
1
79°
52°
2
72°
50°
3
72°
51°
4
73°
48°
5
72°
48°
6
76°
56°
7
79°
55°
8
74°
55°
9
72°
54°
10
76°
54°
11
78°
53°
12
79°
54°
13
78°
55°
14
79°
44°
15
70°
44°
16
70°
45°
17
69°
44°
18
69°
43°
19
68°
44°
20
68°
46°
21
75°
49°
22
75°
50°
23
76°
42°
24
75°
40°
25
69°
40°
26
68°
43°
27
73°
48°
28
73°
48°
29
72°
40°
30
68°
38°
1
65°
38°
2
66°
41°
3
70°
45°
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 65° to 81°, with overnight lows between 38° and 57°. The average high for September is 73° with an average low of 48°. 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.