S
M
T
W
T
F
S
26
54°
40°
27
48°
39°
28
53°
35°
29
59°
36°
30
59°
37°
1
65°
29°
2
70°
35°
3
75°
38°
4
70°
47°
5
54°
41°
6
55°
36°
7
66°
35°
8
78°
40°
9
79°
43°
10
73°
41°
11
86°
41°
12
89°
47°
13
88°
52°
14
81°
47°
15
82°
39°
16
79°
50°
17
56°
39°
18
49°
34°
19
59°
31°
20
64°
33°
21
70°
42°
22
63°
36°
23
79°
37°
24
81°
44°
25
82°
50°
26
69°
51°
27
81°
54°
28
83°
59°
29
80°
47°
30
74°
48°
31
81°
54°
1
79°
53°
2
81°
54°
3
83°
57°
4
81°
56°
5
84°
55°
6
76°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Blue Mountain
Blue Mountain's May 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 47° and 59°. The average high for May is 79° with an average low of 54°. 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 Blue Mountain. See also: June | July | August.
