S
M
T
W
T
F
S
26
80°
63°
27
85°
55°
28
87°
57°
29
85°
62°
30
92°
63°
1
87°
60°
2
91°
62°
3
94°
73°
4
84°
60°
5
73°
51°
6
78°
55°
7
85°
61°
8
93°
64°
9
97°
65°
10
99°
63°
11
102°
66°
12
100°
68°
13
98°
65°
14
99°
64°
15
98°
65°
16
97°
62°
17
95°
64°
18
88°
63°
19
95°
70°
20
96°
70°
21
97°
69°
22
97°
71°
23
96°
71°
24
97°
72°
25
96°
71°
26
95°
71°
27
94°
72°
28
90°
72°
29
90°
66°
30
92°
64°
31
91°
68°
1
92°
68°
2
94°
69°
3
93°
68°
4
93°
71°
5
94°
73°
6
96°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Tucson
South Tucson's May 2026 forecast shows daily high temperatures ranging from 73° to 102°, with overnight lows between 51° and 73°. The average high for May is 94° with an average low of 67°. 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 South Tucson. See also: June | July | August.
