S
M
T
W
T
F
S
26
89°
71°
27
91°
76°
28
95°
78°
29
87°
70°
30
79°
64°
1
68°
56°
2
76°
53°
3
80°
52°
4
83°
62°
5
90°
69°
6
88°
67°
7
73°
63°
8
80°
64°
9
92°
73°
10
91°
67°
11
85°
66°
12
87°
64°
13
89°
65°
14
90°
64°
15
92°
70°
16
91°
70°
17
87°
76°
18
93°
79°
19
92°
67°
20
85°
66°
21
83°
66°
22
87°
66°
23
N/A
24
90°
66°
25
91°
71°
26
89°
72°
27
85°
73°
28
90°
75°
29
92°
76°
30
90°
73°
31
91°
72°
1
88°
73°
2
88°
69°
3
87°
70°
4
90°
71°
5
93°
74°
6
92°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Phoenix
Phoenix's May 2026 forecast shows daily high temperatures ranging from 85° to 93°, with overnight lows between 66° and 76°. The average high for May is 90° 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.
