S
M
T
W
T
F
S
26
81°
51°
27
83°
61°
28
66°
55°
29
64°
50°
30
67°
40°
1
64°
44°
2
61°
44°
3
78°
41°
4
79°
58°
5
70°
46°
6
64°
42°
7
69°
51°
8
73°
53°
9
80°
59°
10
64°
44°
11
67°
49°
12
72°
51°
13
74°
55°
14
77°
57°
15
76°
54°
16
72°
55°
17
73°
54°
18
75°
55°
19
79°
54°
20
73°
53°
21
71°
52°
22
71°
53°
23
72°
54°
24
73°
58°
25
73°
58°
26
74°
55°
27
74°
57°
28
75°
54°
29
75°
55°
30
79°
59°
31
78°
58°
1
80°
62°
2
81°
62°
3
84°
63°
4
83°
64°
5
83°
64°
6
84°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Valmeyer
Valmeyer's May 2026 forecast shows daily high temperatures ranging from 64° to 84°, with overnight lows between 42° and 65°. The average high for May is 75° 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 May weather will actually feel in Valmeyer. See also: June | July | August.