S
M
T
W
T
F
S
26
59°
36°
27
55°
38°
28
54°
35°
29
56°
34°
30
53°
31°
1
54°
33°
2
55°
36°
3
56°
34°
4
61°
35°
5
59°
33°
6
63°
36°
7
62°
35°
8
54°
38°
9
57°
42°
10
58°
40°
11
63°
44°
12
67°
42°
13
58°
38°
14
58°
34°
15
63°
44°
16
68°
46°
17
71°
48°
18
71°
36°
19
59°
35°
20
60°
37°
21
61°
45°
22
65°
46°
23
68°
49°
24
74°
49°
25
74°
48°
26
70°
41°
27
64°
41°
28
64°
44°
29
66°
47°
30
65°
48°
31
65°
46°
1
68°
41°
2
72°
41°
3
70°
46°
4
71°
43°
5
69°
40°
6
70°
43°
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 53° to 74°, with overnight lows between 31° and 49°. The average high for May is 63° 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.
