S
M
T
W
T
F
S
26
91°
70°
27
91°
69°
28
89°
68°
29
91°
70°
30
90°
69°
31
90°
70°
1
91°
70°
2
90°
69°
3
90°
69°
4
89°
68°
5
89°
68°
6
84°
67°
7
83°
67°
8
87°
66°
9
83°
65°
10
84°
68°
11
87°
64°
12
89°
59°
13
85°
65°
14
84°
67°
15
89°
58°
16
89°
57°
17
80°
55°
18
79°
54°
19
77°
55°
20
78°
56°
21
79°
56°
22
78°
57°
23
78°
60°
24
80°
61°
25
85°
55°
26
78°
54°
27
77°
54°
28
80°
60°
29
85°
63°
30
86°
58°
31
89°
53°
1
80°
54°
2
76°
62°
3
79°
63°
4
87°
52°
5
87°
50°
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 76° to 91°, with overnight lows between 50° and 70°. The average high for August is 85° 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.
