S
M
T
W
T
F
S
26
64°
45°
27
61°
43°
28
55°
39°
29
55°
37°
30
52°
34°
1
50°
33°
2
65°
46°
3
67°
51°
4
68°
36°
5
51°
34°
6
49°
32°
7
54°
35°
8
64°
42°
9
61°
41°
10
63°
45°
11
64°
44°
12
63°
45°
13
65°
46°
14
67°
46°
15
61°
43°
16
61°
45°
17
62°
50°
18
64°
50°
19
72°
52°
20
72°
53°
21
67°
46°
22
60°
44°
23
61°
43°
24
62°
44°
25
64°
48°
26
62°
48°
27
65°
49°
28
64°
46°
29
66°
51°
30
70°
47°
31
66°
50°
1
66°
52°
2
67°
51°
3
67°
52°
4
68°
52°
5
68°
49°
6
69°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rosemount
Rosemount's May 2026 forecast shows daily high temperatures ranging from 49° to 72°, with overnight lows between 32° and 53°. The average high for May is 64° with an average low of 46°. 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 Rosemount. See also: June | July | August.