S
M
T
W
T
F
S
26
75°
55°
27
79°
46°
28
83°
50°
29
79°
55°
30
76°
51°
1
76°
50°
2
77°
52°
3
81°
60°
4
79°
61°
5
72°
53°
6
75°
46°
7
81°
53°
8
86°
59°
9
91°
65°
10
92°
65°
11
94°
65°
12
92°
67°
13
93°
68°
14
89°
64°
15
88°
56°
16
86°
59°
17
83°
63°
18
81°
61°
19
85°
56°
20
85°
55°
21
86°
55°
22
84°
58°
23
85°
57°
24
89°
60°
25
89°
61°
26
88°
59°
27
86°
60°
28
87°
61°
29
90°
63°
30
92°
64°
31
91°
63°
1
93°
64°
2
92°
60°
3
91°
62°
4
94°
63°
5
89°
63°
6
93°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sierra Vista Southeast
Sierra Vista Southeast's May 2026 forecast shows daily high temperatures ranging from 84° to 94°, with overnight lows between 55° and 65°. The average high for May is 89° with an average low of 61°. 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 Sierra Vista Southeast. See also: June | July | August.
