S
M
T
W
T
F
S
26
86°
62°
27
87°
63°
28
84°
60°
29
86°
64°
30
85°
63°
1
86°
64°
2
88°
64°
3
89°
64°
4
89°
62°
5
84°
58°
6
81°
60°
7
88°
65°
8
86°
64°
9
86°
64°
10
89°
66°
11
92°
67°
12
92°
68°
13
91°
68°
14
93°
67°
15
93°
68°
16
90°
67°
17
89°
68°
18
90°
63°
19
92°
62°
20
91°
60°
21
90°
61°
22
88°
60°
23
91°
61°
24
91°
60°
25
90°
60°
26
90°
61°
27
91°
62°
28
91°
62°
29
94°
64°
30
97°
65°
31
99°
65°
1
99°
64°
2
97°
66°
3
98°
72°
4
99°
70°
5
98°
68°
6
99°
69°
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 81° to 99°, with overnight lows between 58° and 72°. The average high for May is 91° 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 Tucson. See also: June | July | August.
