S
M
T
W
T
F
S
26
67°
41°
27
69°
44°
28
61°
48°
29
52°
41°
30
55°
37°
1
48°
35°
2
52°
30°
3
64°
37°
4
77°
46°
5
63°
45°
6
56°
37°
7
56°
35°
8
65°
33°
9
68°
47°
10
61°
33°
11
60°
36°
12
65°
32°
13
54°
43°
14
67°
43°
15
71°
39°
16
81°
53°
17
79°
64°
18
81°
66°
19
81°
49°
20
60°
39°
21
61°
41°
22
66°
45°
23
71°
52°
24
74°
53°
25
72°
51°
26
74°
54°
27
76°
53°
28
74°
51°
29
75°
50°
30
76°
56°
31
75°
55°
1
72°
56°
2
76°
55°
3
69°
53°
4
69°
52°
5
70°
55°
6
74°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Castleton Township
Castleton Township's May 2026 forecast shows daily high temperatures ranging from 60° to 81°, with overnight lows between 39° and 66°. The average high for May is 73° with an average low of 53°. 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 Castleton Township. See also: June | July | August.
