S
M
T
W
T
F
S
26
84°
61°
27
77°
59°
28
68°
54°
29
86°
61°
30
81°
63°
1
70°
57°
2
73°
50°
3
73°
45°
4
81°
46°
5
84°
54°
6
88°
63°
7
81°
63°
8
73°
59°
9
73°
61°
10
84°
61°
11
86°
63°
12
73°
63°
13
82°
61°
14
81°
59°
15
79°
54°
16
88°
55°
17
91°
66°
18
90°
63°
19
90°
64°
20
91°
68°
21
91°
68°
22
91°
70°
23
84°
70°
24
83°
68°
25
80°
68°
26
82°
68°
27
84°
66°
28
90°
70°
29
83°
64°
30
78°
60°
31
77°
58°
1
78°
61°
2
81°
59°
3
80°
60°
4
80°
61°
5
82°
65°
6
83°
62°
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 77° to 90°, with overnight lows between 58° and 70°. The average high for May is 82° with an average low of 64°. 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.
