S
M
T
W
T
F
S
26
88°
66°
27
89°
67°
28
90°
64°
29
81°
60°
30
83°
65°
1
88°
68°
2
93°
69°
3
93°
70°
4
94°
70°
5
93°
69°
6
90°
71°
7
88°
69°
8
90°
69°
9
91°
70°
10
94°
71°
11
96°
72°
12
95°
71°
13
96°
72°
14
97°
72°
15
97°
73°
16
96°
72°
17
95°
71°
18
94°
72°
19
94°
71°
20
91°
70°
21
90°
69°
22
89°
66°
23
90°
71°
24
93°
73°
25
92°
70°
26
92°
69°
27
95°
71°
28
102°
76°
29
98°
71°
30
97°
70°
31
98°
71°
1
97°
76°
2
98°
75°
3
97°
70°
4
94°
73°
5
96°
73°
6
96°
77°
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 81° to 102°, with overnight lows between 60° and 77°. The average high for May is 93° with an average low of 70°. 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.
