S
M
T
W
T
F
S
26
79°
56°
27
80°
55°
28
78°
54°
29
77°
55°
30
75°
56°
1
74°
56°
2
74°
55°
3
72°
51°
4
73°
52°
5
74°
53°
6
76°
54°
7
78°
57°
8
80°
57°
9
81°
56°
10
82°
58°
11
82°
59°
12
83°
59°
13
83°
60°
14
82°
59°
15
77°
56°
16
79°
57°
17
82°
59°
18
79°
58°
19
82°
57°
20
82°
56°
21
81°
55°
22
82°
61°
23
85°
62°
24
83°
62°
25
86°
63°
26
87°
63°
27
87°
62°
28
88°
64°
29
88°
65°
30
89°
64°
31
89°
59°
1
87°
61°
2
88°
62°
3
88°
65°
4
87°
66°
5
89°
65°
6
85°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Valley
Valley's May 2026 forecast shows daily high temperatures ranging from 72° to 89°, with overnight lows between 51° and 66°. The average high for May is 82° with an average low of 59°. 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. See also: June | July | August.
