S
M
T
W
T
F
S
26
68°
48°
27
78°
43°
28
72°
59°
29
66°
44°
30
60°
45°
1
58°
39°
2
55°
38°
3
64°
45°
4
66°
52°
5
68°
51°
6
65°
48°
7
68°
52°
8
64°
47°
9
64°
45°
10
67°
48°
11
66°
51°
12
76°
55°
13
73°
48°
14
68°
48°
15
68°
47°
16
69°
48°
17
69°
48°
18
72°
57°
19
79°
58°
20
78°
55°
21
70°
56°
22
74°
52°
23
75°
54°
24
80°
60°
25
81°
58°
26
76°
54°
27
73°
53°
28
75°
53°
29
79°
57°
30
81°
60°
31
82°
61°
1
83°
62°
2
84°
62°
3
84°
63°
4
83°
62°
5
82°
60°
6
83°
63°
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 55° to 84°, with overnight lows between 38° and 63°. 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 Cincinnati. See also: June | July | August.
