S
M
T
W
T
F
S
26
57°
31°
27
50°
28°
28
53°
31°
29
52°
37°
30
58°
38°
1
52°
38°
2
52°
36°
3
53°
28°
4
53°
29°
5
61°
34°
6
64°
40°
7
64°
39°
8
58°
35°
9
52°
32°
10
55°
41°
11
67°
42°
12
61°
33°
13
53°
32°
14
52°
31°
15
53°
31°
16
61°
40°
17
67°
45°
18
60°
44°
19
58°
38°
20
59°
38°
21
68°
45°
22
70°
46°
23
71°
47°
24
71°
46°
25
72°
46°
26
74°
46°
27
71°
44°
28
72°
38°
29
70°
42°
30
74°
46°
31
75°
43°
1
65°
41°
2
62°
43°
3
63°
45°
4
70°
47°
5
76°
49°
6
76°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mount Rushmore Ut
Mount Rushmore Ut's May 2026 forecast shows daily high temperatures ranging from 50° to 76°, with overnight lows between 28° and 49°. The average high for May is 63° with an average low of 39°. 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 Mount Rushmore Ut. See also: June | July | August.
