S
M
T
W
T
F
S
26
80°
63°
27
85°
55°
28
87°
57°
29
85°
62°
30
92°
63°
1
85°
58°
2
89°
69°
3
90°
68°
4
82°
57°
5
73°
52°
6
78°
54°
7
86°
60°
8
93°
62°
9
95°
61°
10
94°
63°
11
94°
63°
12
96°
62°
13
95°
64°
14
96°
66°
15
97°
71°
16
88°
68°
17
93°
69°
18
94°
69°
19
95°
70°
20
96°
70°
21
97°
69°
22
97°
71°
23
96°
71°
24
97°
72°
25
96°
71°
26
95°
71°
27
94°
72°
28
90°
72°
29
90°
66°
30
92°
64°
31
91°
68°
1
92°
68°
2
94°
69°
3
93°
68°
4
93°
71°
5
94°
73°
6
96°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Tucson
Tucson's May 2026 forecast shows daily high temperatures ranging from 73° to 97°, with overnight lows between 52° and 73°. The average high for May is 92° with an average low of 67°. 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 Tucson. See also: June | July | August.
