S
M
T
W
T
F
S
26
61°
21°
27
65°
29°
28
62°
35°
29
72°
28°
30
75°
32°
1
76°
36°
2
78°
42°
3
82°
36°
4
80°
38°
5
83°
39°
6
74°
42°
7
79°
37°
8
65°
40°
9
78°
31°
10
77°
37°
11
74°
37°
12
84°
35°
13
64°
48°
14
60°
41°
15
52°
36°
16
56°
32°
17
60°
40°
18
66°
36°
19
64°
40°
20
71°
39°
21
72°
42°
22
78°
46°
23
76°
44°
24
70°
41°
25
67°
35°
26
68°
41°
27
71°
40°
28
70°
42°
29
69°
41°
30
75°
43°
31
74°
40°
1
71°
41°
2
74°
45°
3
74°
45°
4
73°
43°
5
68°
38°
6
73°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Allison Lake
Allison Lake's May 2026 forecast shows daily high temperatures ranging from 64° to 78°, with overnight lows between 35° and 46°. The average high for May is 71° with an average low of 41°. 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 Allison Lake. See also: June | July | August.