S
M
T
W
T
F
S
26
92°
59°
27
94°
59°
28
88°
60°
29
87°
59°
30
92°
60°
31
93°
55°
1
89°
56°
2
87°
57°
3
89°
56°
4
89°
54°
5
86°
53°
6
89°
55°
7
Hist. Avg.
90°
54°
8
Hist. Avg.
90°
54°
9
Hist. Avg.
90°
54°
10
Hist. Avg.
89°
54°
11
Hist. Avg.
89°
54°
12
Hist. Avg.
89°
53°
13
Hist. Avg.
89°
53°
14
Hist. Avg.
89°
53°
15
Hist. Avg.
89°
53°
16
Hist. Avg.
89°
52°
17
Hist. Avg.
88°
52°
18
Hist. Avg.
88°
52°
19
Hist. Avg.
88°
52°
20
Hist. Avg.
88°
52°
21
Hist. Avg.
88°
51°
22
Hist. Avg.
88°
51°
23
Hist. Avg.
87°
51°
24
Hist. Avg.
87°
50°
25
Hist. Avg.
87°
50°
26
Hist. Avg.
87°
50°
27
Hist. Avg.
87°
50°
28
Hist. Avg.
86°
49°
29
Hist. Avg.
86°
49°
30
Hist. Avg.
86°
49°
31
Hist. Avg.
86°
48°
1
Hist. Avg.
86°
48°
2
Hist. Avg.
85°
48°
3
Hist. Avg.
85°
48°
4
Hist. Avg.
85°
47°
5
Hist. Avg.
84°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Vermillion
Vermillion's August 2026 forecast shows daily high temperatures ranging from 86° to 94°, with overnight lows between 53° and 60°. The average high for August is 90° with an average low of 57°. 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.