S
M
T
W
T
F
S
26
76°
54°
27
68°
56°
28
70°
59°
29
65°
49°
30
64°
38°
1
58°
40°
2
58°
36°
3
65°
34°
4
78°
58°
5
64°
47°
6
59°
42°
7
59°
41°
8
69°
48°
9
72°
49°
10
70°
50°
11
68°
49°
12
66°
51°
13
72°
55°
14
73°
49°
15
71°
52°
16
73°
56°
17
77°
54°
18
75°
59°
19
78°
58°
20
76°
54°
21
75°
51°
22
71°
49°
23
70°
50°
24
72°
52°
25
70°
52°
26
71°
51°
27
72°
52°
28
73°
53°
29
74°
55°
30
76°
60°
31
77°
61°
1
75°
55°
2
76°
56°
3
78°
60°
4
78°
60°
5
79°
63°
6
84°
64°
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 59° to 84°, with overnight lows between 41° and 64°. 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.
