S
M
T
W
T
F
S
26
62°
38°
27
63°
44°
28
62°
39°
29
66°
47°
30
63°
44°
1
64°
44°
2
63°
43°
3
65°
42°
4
68°
43°
5
71°
48°
6
65°
48°
7
70°
49°
8
66°
45°
9
69°
47°
10
66°
42°
11
65°
43°
12
66°
42°
13
66°
42°
14
68°
42°
15
68°
47°
16
67°
44°
17
66°
43°
18
68°
43°
19
73°
46°
20
78°
51°
21
78°
52°
22
73°
52°
23
70°
48°
24
70°
45°
25
71°
49°
26
77°
53°
27
81°
56°
28
84°
54°
29
82°
55°
30
80°
52°
31
80°
51°
1
79°
52°
2
82°
53°
3
83°
51°
4
83°
52°
5
82°
48°
6
83°
51°
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 62° to 84°, with overnight lows between 38° and 56°. The average high for May is 72° with an average low of 47°. 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.
