S
M
T
W
T
F
S
26
63°
45°
27
54°
43°
28
55°
41°
29
50°
36°
30
46°
32°
1
52°
32°
2
61°
32°
3
68°
46°
4
61°
39°
5
48°
36°
6
43°
34°
7
55°
36°
8
68°
34°
9
59°
41°
10
55°
36°
11
63°
32°
12
70°
46°
13
70°
45°
14
73°
45°
15
84°
52°
16
77°
52°
17
61°
50°
18
66°
54°
19
57°
43°
20
59°
41°
21
64°
43°
22
63°
46°
23
70°
45°
24
80°
56°
25
82°
60°
26
88°
61°
27
82°
53°
28
82°
51°
29
77°
50°
30
71°
49°
31
72°
52°
1
77°
52°
2
76°
53°
3
76°
55°
4
75°
56°
5
74°
51°
6
68°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Shell Lake
Shell Lake's May 2026 forecast shows daily high temperatures ranging from 68° to 88°, with overnight lows between 45° and 61°. The average high for May is 77° 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 Shell Lake. See also: June | July | August.
