S
M
T
W
T
F
S
26
82°
56°
27
85°
55°
28
60°
49°
29
63°
43°
30
66°
40°
1
65°
43°
2
64°
41°
3
80°
44°
4
81°
63°
5
65°
46°
6
62°
43°
7
68°
41°
8
78°
54°
9
81°
52°
10
70°
44°
11
78°
41°
12
79°
51°
13
78°
51°
14
79°
50°
15
86°
66°
16
87°
71°
17
85°
70°
18
82°
67°
19
71°
56°
20
64°
59°
21
73°
61°
22
76°
63°
23
78°
63°
24
80°
67°
25
81°
65°
26
84°
68°
27
82°
67°
28
81°
68°
29
80°
63°
30
82°
64°
31
81°
62°
1
85°
67°
2
84°
66°
3
78°
63°
4
78°
61°
5
81°
67°
6
84°
68°
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 64° to 85°, with overnight lows between 56° and 68°. The average high for May is 79° with an average low of 64°. 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.
