S
M
T
W
T
F
S
26
41°
31°
27
45°
28°
28
45°
31°
29
44°
30°
30
52°
33°
1
53°
46°
2
48°
38°
3
54°
36°
4
49°
42°
5
64°
52°
6
65°
54°
7
58°
44°
8
46°
42°
9
53°
46°
10
54°
44°
11
55°
46°
12
53°
42°
13
50°
38°
14
54°
43°
15
55°
47°
16
54°
45°
17
52°
44°
18
55°
40°
19
62°
39°
20
56°
40°
21
63°
41°
22
62°
41°
23
57°
42°
24
58°
42°
25
61°
41°
26
61°
42°
27
63°
43°
28
61°
43°
29
60°
42°
30
60°
42°
31
59°
43°
1
61°
43°
2
62°
42°
3
60°
44°
4
62°
44°
5
61°
43°
6
62°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grand Étang
Grand Étang's May 2026 forecast shows daily high temperatures ranging from 46° to 65°, with overnight lows between 38° and 54°. The average high for May is 58° with an average low of 43°. 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 Grand Étang. See also: June | July | August.