S
M
T
W
T
F
S
26
66°
49°
27
80°
58°
28
79°
58°
29
61°
46°
30
59°
38°
1
56°
42°
2
57°
39°
3
64°
46°
4
65°
48°
5
66°
50°
6
64°
49°
7
68°
52°
8
70°
50°
9
69°
51°
10
68°
49°
11
69°
50°
12
75°
54°
13
75°
48°
14
68°
48°
15
67°
47°
16
68°
48°
17
68°
48°
18
72°
58°
19
79°
58°
20
77°
52°
21
72°
52°
22
72°
51°
23
74°
52°
24
80°
61°
25
82°
60°
26
77°
56°
27
73°
54°
28
76°
56°
29
81°
60°
30
82°
62°
31
83°
62°
1
83°
63°
2
84°
64°
3
85°
65°
4
85°
63°
5
80°
59°
6
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Circleville
Circleville's May 2026 forecast shows daily high temperatures ranging from 56° to 85°, with overnight lows between 38° and 65°. 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 Circleville. See also: June | July | August.