S
M
T
W
T
F
S
26
86°
68°
27
87°
69°
28
87°
68°
29
86°
68°
30
85°
67°
31
81°
65°
1
80°
68°
2
87°
69°
3
88°
69°
4
87°
68°
5
86°
67°
6
84°
68°
7
86°
66°
8
85°
60°
9
82°
57°
10
77°
64°
11
80°
58°
12
78°
57°
13
78°
58°
14
79°
63°
15
79°
65°
16
77°
58°
17
77°
57°
18
80°
58°
19
82°
61°
20
84°
62°
21
84°
62°
22
83°
64°
23
83°
61°
24
82°
66°
25
82°
66°
26
84°
61°
27
83°
56°
28
75°
56°
29
76°
55°
30
75°
54°
31
75°
55°
1
74°
56°
2
74°
54°
3
75°
55°
4
80°
59°
5
76°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Vermillion
Vermillion's August 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 54° and 69°. The average high for August is 81° with an average low of 62°. 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 Vermillion. See also: September | October | November.
