S
M
T
W
T
F
S
26
30°
23°
27
38°
24°
28
44°
27°
29
52°
25°
30
61°
34°
1
66°
34°
2
66°
33°
3
60°
46°
4
38°
34°
5
47°
26°
6
55°
27°
7
65°
40°
8
58°
33°
9
57°
28°
10
72°
36°
11
73°
40°
12
74°
43°
13
82°
38°
14
56°
48°
15
35°
32°
16
42°
33°
17
55°
32°
18
58°
40°
19
66°
44°
20
67°
44°
21
70°
43°
22
70°
45°
23
78°
54°
24
67°
54°
25
77°
42°
26
84°
52°
27
86°
64°
28
89°
64°
29
89°
62°
30
75°
58°
31
69°
60°
1
72°
54°
2
65°
49°
3
65°
48°
4
72°
54°
5
71°
51°
6
73°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Loon Lake
Loon Lake's May 2026 forecast shows daily high temperatures ranging from 65° to 73°, with overnight lows between 48° and 60°. The average high for May is 70° with an average low of 52°. 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 Loon Lake. See also: June | July | August.