S
M
T
W
T
F
S
26
63°
51°
27
66°
51°
28
71°
46°
29
74°
48°
30
71°
53°
1
71°
55°
2
67°
55°
3
66°
54°
4
66°
48°
5
63°
54°
6
73°
55°
7
70°
55°
8
68°
54°
9
72°
52°
10
73°
54°
11
83°
53°
12
69°
55°
13
71°
54°
14
77°
51°
15
77°
52°
16
72°
54°
17
76°
51°
18
85°
56°
19
91°
56°
20
87°
53°
21
83°
51°
22
80°
51°
23
75°
51°
24
74°
51°
25
76°
52°
26
75°
51°
27
76°
51°
28
77°
52°
29
78°
51°
30
78°
52°
31
77°
51°
1
81°
54°
2
81°
54°
3
80°
55°
4
83°
55°
5
82°
54°
6
82°
55°
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 74° to 91°, with overnight lows between 51° and 56°. The average high for May is 80° with an average low of 53°. 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.
