S
M
T
W
T
F
S
26
78°
52°
27
83°
59°
28
81°
57°
29
78°
50°
30
81°
59°
1
88°
60°
2
95°
61°
3
92°
60°
4
92°
58°
5
93°
57°
6
81°
57°
7
82°
59°
8
84°
60°
9
85°
60°
10
83°
57°
11
82°
57°
12
82°
58°
13
83°
61°
14
84°
62°
15
87°
66°
16
86°
62°
17
85°
61°
18
83°
60°
19
85°
63°
20
86°
68°
21
87°
66°
22
89°
67°
23
90°
66°
24
89°
66°
25
89°
67°
26
90°
67°
27
91°
69°
28
95°
72°
29
97°
72°
30
99°
71°
31
97°
71°
1
94°
69°
2
93°
69°
3
93°
70°
4
97°
71°
5
100°
70°
6
102°
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 78° to 102°, with overnight lows between 50° and 72°. The average high for May is 88° with an average low of 63°. 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.
