S
M
T
W
T
F
S
26
83°
65°
27
87°
70°
28
84°
71°
29
80°
65°
30
69°
59°
1
60°
54°
2
72°
49°
3
78°
45°
4
78°
51°
5
79°
58°
6
82°
57°
7
73°
56°
8
71°
58°
9
74°
64°
10
81°
64°
11
78°
64°
12
82°
58°
13
85°
53°
14
83°
59°
15
89°
59°
16
86°
69°
17
86°
72°
18
88°
72°
19
90°
70°
20
76°
68°
21
76°
67°
22
77°
69°
23
79°
68°
24
80°
70°
25
81°
69°
26
84°
70°
27
83°
68°
28
81°
67°
29
80°
68°
30
87°
66°
31
88°
70°
1
89°
70°
2
88°
69°
3
84°
69°
4
83°
65°
5
84°
67°
6
88°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Valley Park
Valley Park's May 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 65° and 72°. The average high for May is 83° with an average low of 69°. 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 Valley Park. See also: June | July | August.