S
M
T
W
T
F
S
26
58°
39°
27
56°
41°
28
51°
35°
29
57°
35°
30
51°
38°
1
51°
32°
2
66°
33°
3
71°
46°
4
63°
37°
5
49°
32°
6
53°
30°
7
63°
32°
8
74°
41°
9
60°
40°
10
64°
36°
11
76°
33°
12
73°
51°
13
76°
41°
14
75°
55°
15
90°
57°
16
80°
47°
17
82°
60°
18
63°
46°
19
54°
36°
20
62°
45°
21
63°
47°
22
58°
47°
23
72°
51°
24
78°
53°
25
80°
55°
26
83°
56°
27
77°
55°
28
78°
58°
29
77°
58°
30
78°
57°
31
77°
54°
1
75°
52°
2
71°
56°
3
72°
55°
4
73°
57°
5
78°
58°
6
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rushmore
Rushmore's May 2026 forecast shows daily high temperatures ranging from 54° to 83°, with overnight lows between 36° and 58°. The average high for May is 73° with an average low of 53°. 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 Rushmore. See also: June | July | August.
