S
M
T
W
T
F
S
26
77°
63°
27
79°
53°
28
84°
53°
29
87°
57°
30
90°
60°
1
88°
62°
2
91°
68°
3
95°
75°
4
77°
70°
5
77°
63°
6
83°
54°
7
95°
62°
8
100°
68°
9
102°
65°
10
105°
69°
11
107°
73°
12
104°
80°
13
97°
71°
14
97°
70°
15
96°
69°
16
98°
69°
17
92°
66°
18
90°
64°
19
92°
67°
20
96°
69°
21
100°
71°
22
98°
70°
23
93°
67°
24
96°
67°
25
95°
69°
26
96°
69°
27
101°
70°
28
89°
63°
29
90°
65°
30
94°
68°
31
99°
71°
1
100°
73°
2
101°
73°
3
101°
74°
4
100°
74°
5
98°
73°
6
97°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Deer Valley
Deer Valley's May 2026 forecast shows daily high temperatures ranging from 89° to 101°, with overnight lows between 63° and 74°. The average high for May is 96° 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 Deer Valley. See also: June | July | August.