S
M
T
W
T
F
S
26
68°
48°
27
78°
43°
28
76°
59°
29
67°
51°
30
61°
41°
1
58°
38°
2
58°
34°
3
64°
31°
4
78°
45°
5
71°
58°
6
62°
43°
7
62°
44°
8
69°
53°
9
73°
52°
10
64°
43°
11
64°
41°
12
63°
50°
13
65°
49°
14
65°
51°
15
70°
54°
16
72°
53°
17
77°
58°
18
80°
62°
19
79°
60°
20
80°
54°
21
68°
49°
22
70°
51°
23
71°
53°
24
72°
55°
25
72°
52°
26
73°
52°
27
74°
53°
28
73°
52°
29
75°
58°
30
79°
60°
31
76°
61°
1
76°
59°
2
79°
58°
3
81°
62°
4
82°
63°
5
82°
63°
6
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cincinnati
Cincinnati's May 2026 forecast shows daily high temperatures ranging from 62° to 83°, with overnight lows between 41° and 63°. The average high for May is 73° with an average low of 54°. 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 Cincinnati. See also: June | July | August.
