S
M
T
W
T
F
S
30
76°
54°
31
76°
53°
1
75°
55°
2
76°
54°
3
77°
54°
4
77°
53°
5
78°
56°
6
77°
58°
7
75°
53°
8
76°
51°
9
73°
55°
10
76°
50°
11
74°
50°
12
74°
51°
13
75°
53°
14
75°
53°
15
80°
56°
16
80°
57°
17
79°
56°
18
80°
54°
19
80°
46°
20
72°
47°
21
70°
53°
22
71°
54°
23
75°
54°
24
76°
55°
25
77°
46°
26
76°
43°
27
72°
44°
28
68°
44°
29
68°
44°
30
69°
48°
1
68°
44°
2
66°
40°
3
Hist. Avg.
70°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Montpelier
Montpelier's September 2026 forecast shows daily high temperatures ranging from 66° to 80°, with overnight lows between 40° and 58°. The average high for September is 75° with an average low of 51°. 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 Montpelier. See also: October | November | December.
