S
M
T
W
T
F
S
26
79°
59°
27
83°
60°
28
87°
63°
29
90°
65°
30
83°
65°
1
87°
70°
2
94°
73°
3
96°
71°
4
92°
72°
5
96°
73°
6
97°
72°
7
95°
71°
8
92°
66°
9
96°
72°
10
95°
71°
11
96°
72°
12
96°
72°
13
95°
71°
14
97°
73°
15
97°
74°
16
98°
73°
17
98°
74°
18
98°
74°
19
96°
73°
20
94°
74°
21
91°
68°
22
89°
66°
23
90°
72°
24
92°
73°
25
94°
74°
26
96°
76°
27
98°
77°
28
98°
77°
29
101°
76°
30
101°
77°
31
98°
77°
1
99°
76°
2
100°
77°
3
100°
77°
4
99°
74°
5
96°
75°
6
97°
72°
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 79° to 101°, with overnight lows between 59° and 77°. The average high for May is 94° with an average low of 72°. 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.
