S
M
T
W
T
F
S
26
47°
29°
27
46°
27°
28
37°
28°
29
30°
24°
30
40°
17°
1
39°
13°
2
46°
12°
3
42°
30°
4
34°
24°
5
31°
23°
6
36°
26°
7
36°
27°
8
38°
28°
9
38°
29°
10
39°
28°
11
50°
22°
12
58°
29°
13
49°
30°
14
60°
29°
15
54°
31°
16
37°
23°
17
40°
27°
18
42°
30°
19
37°
27°
20
47°
27°
21
63°
31°
22
67°
30°
23
N/A
24
57°
44°
25
70°
44°
26
57°
38°
27
63°
42°
28
71°
45°
29
67°
43°
30
73°
44°
31
71°
41°
1
71°
49°
2
74°
51°
3
65°
30°
4
59°
36°
5
65°
42°
6
72°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Wunnummin Lake
Wunnummin Lake's May 2026 forecast shows daily high temperatures ranging from 57° to 74°, with overnight lows between 30° and 51°. The average high for May is 67° with an average low of 42°. 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 Wunnummin Lake. See also: June | July | August.