S
M
T
W
T
F
S
26
92°
66°
27
93°
68°
28
92°
68°
29
92°
67°
30
92°
68°
1
93°
69°
2
94°
70°
3
94°
71°
4
90°
70°
5
87°
68°
6
93°
71°
7
93°
72°
8
95°
71°
9
85°
68°
10
87°
72°
11
88°
71°
12
93°
72°
13
95°
72°
14
96°
72°
15
95°
66°
16
95°
67°
17
96°
66°
18
95°
67°
19
96°
65°
20
95°
64°
21
92°
63°
22
95°
66°
23
96°
66°
24
101°
70°
25
101°
69°
26
95°
64°
27
94°
65°
28
93°
67°
29
94°
66°
30
94°
67°
31
95°
71°
1
100°
72°
2
105°
79°
3
105°
77°
4
101°
78°
5
105°
77°
6
103°
76°
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 85° to 105°, with overnight lows between 63° and 79°. The average high for May is 95° 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 Phoenix. See also: June | July | August.
