S
M
T
W
T
F
S
26
67°
45°
27
61°
51°
28
58°
51°
29
64°
47°
30
68°
49°
1
68°
50°
2
69°
51°
3
72°
51°
4
78°
52°
5
69°
55°
6
59°
54°
7
51°
45°
8
49°
42°
9
55°
47°
10
51°
40°
11
55°
48°
12
62°
44°
13
58°
43°
14
58°
44°
15
56°
42°
16
56°
43°
17
56°
45°
18
58°
43°
19
57°
44°
20
56°
39°
21
52°
42°
22
52°
40°
23
53°
41°
24
56°
43°
25
53°
41°
26
52°
37°
27
52°
37°
28
54°
43°
29
53°
44°
30
54°
43°
31
61°
44°
1
62°
45°
2
60°
43°
3
56°
43°
4
59°
44°
5
61°
41°
6
54°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grouse Mountain
Grouse Mountain's May 2026 forecast shows daily high temperatures ranging from 49° to 62°, with overnight lows between 37° and 48°. The average high for May is 56° 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 Grouse Mountain. See also: June | July | August.
