S
M
T
W
T
F
S
26
51°
26°
27
54°
30°
28
55°
32°
29
48°
31°
30
49°
31°
1
49°
34°
2
50°
33°
3
54°
34°
4
54°
34°
5
56°
36°
6
50°
30°
7
55°
33°
8
55°
32°
9
54°
33°
10
57°
31°
11
60°
36°
12
62°
35°
13
63°
37°
14
63°
40°
15
62°
41°
16
58°
39°
17
58°
41°
18
59°
40°
19
64°
39°
20
66°
40°
21
65°
33°
22
58°
34°
23
59°
37°
24
64°
36°
25
62°
36°
26
62°
42°
27
65°
34°
28
61°
33°
29
60°
36°
30
64°
38°
31
70°
40°
1
69°
38°
2
70°
38°
3
70°
39°
4
71°
49°
5
66°
42°
6
66°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grand Mesa
Grand Mesa's May 2026 forecast shows daily high temperatures ranging from 48° to 71°, with overnight lows between 26° and 49°. The average high for May is 60° with an average low of 36°. 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 Grand Mesa. See also: June | July | August.
