S
M
T
W
T
F
S
26
57°
28°
27
59°
36°
28
58°
38°
29
63°
32°
30
68°
36°
1
73°
40°
2
77°
46°
3
75°
42°
4
74°
44°
5
72°
46°
6
73°
48°
7
68°
46°
8
67°
39°
9
68°
42°
10
75°
51°
11
69°
41°
12
85°
40°
13
65°
45°
14
60°
42°
15
54°
37°
16
51°
35°
17
57°
34°
18
62°
39°
19
65°
42°
20
66°
45°
21
67°
40°
22
72°
38°
23
77°
45°
24
75°
50°
25
78°
45°
26
59°
47°
27
77°
50°
28
86°
54°
29
74°
45°
30
59°
43°
31
68°
41°
1
75°
43°
2
84°
51°
3
83°
53°
4
80°
48°
5
74°
47°
6
73°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Diamond
Diamond's May 2026 forecast shows daily high temperatures ranging from 59° to 86°, with overnight lows between 41° and 54°. The average high for May is 74° with an average low of 47°. 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 Diamond. See also: June | July | August.
