S
M
T
W
T
F
S
26
55°
25°
27
50°
36°
28
43°
28°
29
45°
30°
30
41°
25°
1
55°
37°
2
62°
34°
3
68°
34°
4
45°
29°
5
44°
26°
6
45°
29°
7
54°
35°
8
58°
35°
9
57°
36°
10
61°
37°
11
63°
38°
12
62°
39°
13
65°
40°
14
64°
40°
15
56°
34°
16
58°
40°
17
58°
46°
18
62°
44°
19
64°
39°
20
58°
36°
21
59°
37°
22
60°
40°
23
60°
38°
24
61°
39°
25
61°
41°
26
67°
45°
27
68°
49°
28
65°
43°
29
72°
43°
30
62°
40°
31
63°
49°
1
63°
49°
2
64°
51°
3
63°
51°
4
63°
50°
5
64°
51°
6
64°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mountain
Mountain's May 2026 forecast shows daily high temperatures ranging from 44° to 72°, with overnight lows between 26° and 52°. The average high for May is 60° with an average low of 40°. 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 Mountain. See also: June | July | August.
