S
M
T
W
T
F
S
28
81°
60°
29
91°
69°
30
91°
75°
1
96°
75°
2
95°
72°
3
90°
72°
4
88°
68°
5
82°
66°
6
82°
63°
7
83°
64°
8
85°
63°
9
84°
62°
10
83°
64°
11
82°
63°
12
85°
62°
13
84°
63°
14
81°
60°
15
76°
57°
16
77°
61°
17
76°
57°
18
77°
61°
19
77°
64°
20
78°
64°
21
82°
63°
22
83°
64°
23
83°
64°
24
81°
63°
25
83°
64°
26
83°
64°
27
84°
65°
28
83°
64°
29
84°
65°
30
82°
64°
31
83°
63°
1
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Vandalia
Vandalia's July 2026 forecast shows daily high temperatures ranging from 76° to 96°, with overnight lows between 57° and 75°. The average high for July is 83° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Vandalia. See also: August | September | October.
