S
M
T
W
T
F
S
26
70°
40°
27
72°
53°
28
64°
49°
29
57°
37°
30
56°
36°
1
52°
34°
2
59°
30°
3
72°
46°
4
81°
47°
5
57°
41°
6
55°
32°
7
64°
29°
8
70°
32°
9
73°
48°
10
66°
34°
11
64°
39°
12
76°
42°
13
66°
44°
14
73°
40°
15
81°
53°
16
82°
59°
17
84°
63°
18
79°
64°
19
73°
50°
20
66°
44°
21
64°
43°
22
71°
50°
23
79°
55°
24
80°
58°
25
86°
56°
26
88°
58°
27
90°
56°
28
81°
48°
29
84°
54°
30
80°
54°
31
82°
53°
1
80°
52°
2
80°
52°
3
78°
55°
4
81°
56°
5
86°
61°
6
87°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Shannon
Shannon's May 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 48° and 61°. The average high for May is 83° with an average low of 55°. 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 Shannon. See also: June | July | August.
