S
M
T
W
T
F
S
26
67°
45°
27
66°
47°
28
61°
46°
29
57°
43°
30
55°
34°
1
51°
34°
2
52°
30°
3
63°
35°
4
77°
45°
5
57°
44°
6
56°
37°
7
58°
35°
8
66°
35°
9
70°
46°
10
61°
36°
11
63°
37°
12
63°
32°
13
61°
37°
14
66°
36°
15
67°
38°
16
81°
55°
17
84°
59°
18
83°
65°
19
N/A
20
62°
44°
21
67°
47°
22
65°
55°
23
68°
53°
24
69°
54°
25
73°
56°
26
74°
59°
27
79°
58°
28
78°
61°
29
76°
58°
30
76°
60°
31
78°
59°
1
74°
52°
2
74°
55°
3
68°
54°
4
68°
52°
5
69°
56°
6
73°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Vandalia
Vandalia's May 2026 forecast shows daily high temperatures ranging from 62° to 79°, with overnight lows between 44° and 61°. The average high for May is 72° with an average low of 55°. 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.
