S
M
T
W
T
F
S
26
87°
68°
27
87°
69°
28
86°
68°
29
84°
67°
30
79°
67°
31
79°
66°
1
80°
66°
2
79°
63°
3
79°
66°
4
80°
61°
5
79°
61°
6
78°
60°
7
78°
60°
8
79°
66°
9
77°
66°
10
79°
65°
11
80°
66°
12
81°
66°
13
82°
65°
14
83°
66°
15
83°
66°
16
77°
65°
17
78°
63°
18
77°
62°
19
80°
63°
20
82°
64°
21
77°
55°
22
75°
55°
23
77°
57°
24
76°
56°
25
77°
57°
26
80°
63°
27
84°
63°
28
86°
65°
29
86°
60°
30
85°
56°
31
76°
56°
1
76°
63°
2
82°
57°
3
82°
64°
4
83°
64°
5
85°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Montpelier
Montpelier's August 2026 forecast shows daily high temperatures ranging from 75° to 87°, with overnight lows between 55° and 69°. The average high for August is 80° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Montpelier. See also: September | October | November.