S
M
T
W
T
F
S
30
75°
48°
31
76°
48°
1
74°
47°
2
74°
50°
3
75°
50°
4
72°
52°
5
73°
48°
6
74°
49°
7
72°
47°
8
73°
46°
9
71°
46°
10
72°
53°
11
71°
46°
12
72°
45°
13
75°
44°
14
74°
51°
15
75°
51°
16
71°
45°
17
69°
43°
18
71°
43°
19
73°
49°
20
75°
50°
21
75°
49°
22
70°
47°
23
74°
47°
24
72°
44°
25
69°
47°
26
66°
40°
27
72°
41°
28
64°
40°
29
63°
40°
30
65°
42°
1
64°
39°
2
Hist. Avg.
67°
43°
3
Hist. Avg.
66°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Henniker
Henniker's September 2026 forecast shows daily high temperatures ranging from 63° to 76°, with overnight lows between 39° and 53°. The average high for September is 72° 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. See also: October | November | December.
