S
M
T
W
T
F
S
26
80°
63°
27
83°
52°
28
85°
61°
29
84°
63°
30
80°
59°
1
84°
61°
2
89°
67°
3
92°
67°
4
87°
61°
5
80°
52°
6
81°
57°
7
85°
61°
8
89°
62°
9
93°
62°
10
91°
61°
11
97°
66°
12
92°
67°
13
91°
66°
14
92°
68°
15
93°
69°
16
93°
68°
17
94°
69°
18
94°
69°
19
91°
70°
20
89°
67°
21
86°
64°
22
85°
62°
23
86°
63°
24
87°
64°
25
89°
67°
26
90°
70°
27
91°
72°
28
92°
72°
29
96°
72°
30
97°
72°
31
95°
72°
1
95°
71°
2
96°
72°
3
97°
72°
4
96°
69°
5
93°
71°
6
94°
66°
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 80° to 97°, with overnight lows between 52° and 72°. The average high for May is 90° with an average low of 66°. 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.
