S
M
T
W
T
F
S
26
80°
61°
27
82°
62°
28
79°
61°
29
77°
60°
30
78°
61°
31
82°
62°
1
82°
61°
2
81°
61°
3
84°
61°
4
84°
60°
5
80°
54°
6
77°
57°
7
79°
56°
8
75°
57°
9
74°
54°
10
74°
53°
11
76°
59°
12
83°
60°
13
79°
55°
14
80°
52°
15
75°
51°
16
76°
59°
17
78°
57°
18
75°
52°
19
75°
52°
20
77°
51°
21
78°
54°
22
81°
58°
23
82°
57°
24
82°
58°
25
83°
57°
26
81°
58°
27
82°
54°
28
80°
57°
29
81°
57°
30
80°
50°
31
74°
47°
1
72°
48°
2
72°
47°
3
73°
47°
4
72°
48°
5
71°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Vandalia
Vandalia's August 2026 forecast shows daily high temperatures ranging from 71° to 84°, with overnight lows between 47° and 62°. The average high for August is 78° with an average low of 56°. 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 Vandalia. See also: September | October | November.
