S
M
T
W
T
F
S
26
86°
58°
27
87°
57°
28
71°
60°
29
77°
55°
30
79°
58°
1
82°
61°
2
87°
64°
3
89°
65°
4
89°
65°
5
90°
64°
6
89°
66°
7
86°
65°
8
87°
64°
9
87°
66°
10
88°
66°
11
90°
67°
12
92°
67°
13
92°
66°
14
93°
67°
15
93°
68°
16
90°
67°
17
92°
65°
18
91°
66°
19
91°
65°
20
89°
63°
21
87°
64°
22
85°
61°
23
87°
65°
24
89°
67°
25
89°
65°
26
90°
65°
27
92°
67°
28
98°
71°
29
95°
68°
30
95°
65°
31
94°
67°
1
96°
72°
2
94°
68°
3
95°
65°
4
92°
68°
5
93°
68°
6
94°
72°
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 71° to 98°, with overnight lows between 55° and 72°. The average high for May is 89° with an average low of 65°. 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.
