S
M
T
W
T
F
S
26
61°
35°
27
60°
37°
28
62°
38°
29
61°
39°
30
56°
39°
1
59°
38°
2
63°
39°
3
64°
40°
4
65°
40°
5
64°
42°
6
65°
41°
7
61°
39°
8
60°
37°
9
54°
40°
10
55°
41°
11
66°
42°
12
66°
42°
13
67°
44°
14
69°
45°
15
70°
45°
16
67°
46°
17
63°
46°
18
69°
43°
19
60°
37°
20
61°
37°
21
60°
40°
22
59°
39°
23
71°
46°
24
72°
48°
25
71°
48°
26
70°
49°
27
69°
48°
28
75°
45°
29
71°
45°
30
64°
40°
31
66°
48°
1
73°
48°
2
74°
47°
3
75°
45°
4
75°
39°
5
66°
39°
6
65°
43°
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 54° to 75°, with overnight lows between 35° and 49°. The average high for May is 65° with an average low of 42°. 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.
