S
M
T
W
T
F
S
26
65°
47°
27
75°
49°
28
71°
55°
29
64°
46°
30
57°
42°
1
52°
40°
2
51°
34°
3
61°
34°
4
72°
49°
5
67°
46°
6
56°
40°
7
59°
40°
8
67°
46°
9
72°
53°
10
67°
51°
11
70°
43°
12
73°
41°
13
65°
46°
14
63°
42°
15
65°
43°
16
75°
62°
17
87°
67°
18
87°
68°
19
84°
63°
20
69°
50°
21
67°
51°
22
70°
58°
23
77°
63°
24
76°
65°
25
78°
62°
26
80°
60°
27
80°
61°
28
77°
61°
29
78°
58°
30
81°
63°
31
80°
62°
1
79°
63°
2
80°
63°
3
78°
60°
4
74°
57°
5
74°
57°
6
77°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Vandalia
Vandalia's May 2026 forecast shows daily high temperatures ranging from 67° to 87°, with overnight lows between 50° and 68°. The average high for May is 78° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Vandalia. See also: June | July | August.
