S
M
T
W
T
F
S
30
76°
59°
31
76°
63°
1
77°
63°
2
78°
62°
3
77°
55°
4
76°
53°
5
75°
54°
6
75°
54°
7
77°
55°
8
81°
57°
9
80°
60°
10
80°
53°
11
74°
53°
12
74°
57°
13
75°
51°
14
73°
51°
15
70°
53°
16
72°
52°
17
71°
51°
18
73°
50°
19
75°
50°
20
72°
54°
21
76°
50°
22
72°
56°
23
76°
56°
24
77°
55°
25
77°
56°
26
75°
56°
27
76°
55°
28
78°
55°
29
77°
52°
30
74°
54°
1
75°
55°
2
77°
48°
3
76°
44°
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 70° to 81°, with overnight lows between 44° and 63°. The average high for September is 76° with an average low of 54°. 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.
