S
M
T
W
T
F
S
26
79°
66°
27
83°
61°
28
87°
62°
29
91°
65°
30
93°
66°
1
90°
68°
2
94°
71°
3
98°
77°
4
80°
72°
5
80°
66°
6
86°
62°
7
97°
67°
8
101°
71°
9
105°
74°
10
106°
75°
11
109°
77°
12
108°
80°
13
101°
81°
14
101°
75°
15
98°
73°
16
100°
74°
17
96°
73°
18
87°
68°
19
91°
68°
20
94°
70°
21
97°
71°
22
98°
72°
23
99°
74°
24
100°
75°
25
99°
73°
26
98°
75°
27
96°
74°
28
97°
73°
29
99°
74°
30
98°
75°
31
101°
75°
1
103°
76°
2
104°
78°
3
99°
75°
4
100°
73°
5
97°
74°
6
101°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Phoenix
Phoenix's May 2026 forecast shows daily high temperatures ranging from 96° to 104°, with overnight lows between 71° and 79°. The average high for May is 99° with an average low of 74°. 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 Phoenix. See also: June | July | August.
