S
M
T
W
T
F
S
26
40°
31°
27
43°
32°
28
51°
29°
29
60°
26°
30
59°
26°
1
61°
29°
2
80°
32°
3
69°
41°
4
58°
40°
5
51°
25°
6
55°
23°
7
65°
27°
8
74°
40°
9
64°
42°
10
73°
40°
11
92°
39°
12
75°
42°
13
93°
40°
14
82°
44°
15
79°
43°
16
79°
41°
17
61°
44°
18
45°
35°
19
59°
35°
20
70°
31°
21
70°
42°
22
62°
43°
23
74°
39°
24
85°
44°
25
89°
52°
26
90°
53°
27
86°
58°
28
74°
49°
29
79°
52°
30
69°
50°
31
71°
49°
1
71°
49°
2
80°
51°
3
79°
52°
4
77°
49°
5
75°
52°
6
83°
54°
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 69° to 83°, with overnight lows between 49° and 54°. The average high for May is 76° with an average low of 51°. 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.
