S
M
T
W
T
F
S
26
78°
51°
27
63°
59°
28
63°
54°
29
61°
44°
30
61°
40°
1
55°
45°
2
55°
42°
3
66°
43°
4
74°
54°
5
63°
45°
6
60°
44°
7
64°
39°
8
66°
48°
9
74°
50°
10
70°
53°
11
72°
46°
12
78°
46°
13
69°
50°
14
69°
44°
15
74°
52°
16
75°
65°
17
84°
66°
18
79°
68°
19
78°
53°
20
66°
47°
21
68°
53°
22
75°
57°
23
77°
60°
24
78°
63°
25
77°
62°
26
80°
62°
27
79°
61°
28
80°
63°
29
79°
62°
30
80°
59°
31
83°
65°
1
84°
65°
2
84°
64°
3
77°
60°
4
76°
57°
5
77°
61°
6
81°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Casey
Casey's May 2026 forecast shows daily high temperatures ranging from 66° to 84°, with overnight lows between 47° and 68°. The average high for May is 78° with an average low of 61°. 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 Casey. See also: June | July | August.
