S
M
T
W
T
F
S
26
82°
62°
27
83°
63°
28
84°
62°
29
84°
63°
30
85°
64°
31
85°
64°
1
86°
63°
2
82°
59°
3
79°
56°
4
78°
57°
5
79°
61°
6
79°
62°
7
82°
62°
8
82°
61°
9
85°
63°
10
85°
62°
11
84°
62°
12
83°
61°
13
84°
61°
14
85°
60°
15
85°
62°
16
84°
62°
17
80°
61°
18
85°
63°
19
84°
62°
20
81°
56°
21
84°
54°
22
77°
54°
23
77°
55°
24
78°
56°
25
77°
53°
26
77°
56°
27
78°
53°
28
77°
53°
29
75°
52°
30
76°
51°
31
75°
51°
1
74°
50°
2
74°
53°
3
75°
53°
4
72°
55°
5
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mont Vernon
Mont Vernon's August 2026 forecast shows daily high temperatures ranging from 72° to 86°, with overnight lows between 50° and 64°. The average high for August is 80° with an average low of 58°. 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 Mont Vernon. See also: September | October | November.
