S
M
T
W
T
F
S
26
74°
51°
27
73°
48°
28
58°
44°
29
59°
41°
30
56°
38°
1
57°
35°
2
61°
33°
3
76°
49°
4
83°
47°
5
59°
40°
6
57°
41°
7
66°
48°
8
69°
46°
9
71°
46°
10
62°
42°
11
64°
43°
12
72°
53°
13
72°
50°
14
70°
49°
15
73°
53°
16
75°
52°
17
71°
48°
18
74°
52°
19
75°
49°
20
70°
51°
21
69°
45°
22
66°
44°
23
67°
45°
24
68°
45°
25
67°
46°
26
67°
46°
27
68°
47°
28
69°
48°
29
70°
55°
30
73°
57°
31
71°
52°
1
73°
52°
2
76°
56°
3
76°
58°
4
80°
58°
5
80°
60°
6
78°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sully
Sully's May 2026 forecast shows daily high temperatures ranging from 57° to 83°, with overnight lows between 40° and 60°. The average high for May is 71° with an average low of 50°. 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 Sully. See also: June | July | August.