S
M
T
W
T
F
S
26
88°
62°
27
89°
63°
28
88°
62°
29
87°
63°
30
88°
64°
1
89°
65°
2
90°
64°
3
90°
66°
4
81°
65°
5
82°
65°
6
87°
66°
7
87°
66°
8
88°
65°
9
80°
62°
10
82°
64°
11
83°
66°
12
85°
65°
13
88°
67°
14
91°
65°
15
92°
62°
16
92°
63°
17
93°
60°
18
92°
61°
19
93°
62°
20
92°
60°
21
90°
60°
22
93°
62°
23
95°
64°
24
97°
67°
25
99°
64°
26
92°
60°
27
92°
60°
28
91°
62°
29
92°
62°
30
92°
63°
31
93°
66°
1
98°
68°
2
102°
76°
3
102°
75°
4
100°
73°
5
102°
72°
6
101°
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 80° to 102°, with overnight lows between 60° and 76°. The average high for May is 91° 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.
