S
M
T
W
T
F
S
30
69°
56°
31
70°
57°
1
72°
53°
2
74°
53°
3
72°
50°
4
73°
50°
5
72°
51°
6
75°
55°
7
75°
55°
8
74°
54°
9
74°
55°
10
75°
55°
11
74°
54°
12
75°
54°
13
74°
53°
14
74°
54°
15
73°
52°
16
74°
45°
17
68°
48°
18
65°
52°
19
70°
51°
20
73°
52°
21
71°
50°
22
71°
47°
23
69°
46°
24
70°
43°
25
Hist. Avg.
70°
48°
26
Hist. Avg.
69°
48°
27
Hist. Avg.
69°
47°
28
Hist. Avg.
68°
47°
29
Hist. Avg.
68°
46°
30
Hist. Avg.
67°
46°
1
Hist. Avg.
67°
46°
2
Hist. Avg.
66°
45°
3
Hist. Avg.
66°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Gilmanton
Gilmanton's September 2026 forecast shows daily high temperatures ranging from 65° to 75°, with overnight lows between 43° and 57°. The average high for September is 72° with an average low of 52°. 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 Gilmanton. See also: October | November | December.
