S
M
T
W
T
F
S
26
73°
51°
27
65°
56°
28
62°
53°
29
62°
45°
30
61°
38°
1
54°
41°
2
54°
36°
3
63°
35°
4
75°
50°
5
62°
45°
6
58°
43°
7
62°
35°
8
64°
48°
9
73°
51°
10
68°
50°
11
71°
40°
12
78°
41°
13
67°
48°
14
66°
38°
15
71°
45°
16
72°
63°
17
82°
62°
18
81°
62°
19
84°
62°
20
69°
55°
21
66°
53°
22
67°
54°
23
72°
57°
24
75°
56°
25
81°
55°
26
80°
64°
27
77°
59°
28
82°
56°
29
78°
52°
30
78°
49°
31
78°
50°
1
77°
53°
2
76°
54°
3
77°
53°
4
81°
57°
5
80°
58°
6
82°
59°
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 76° to 82°, with overnight lows between 49° and 64°. The average high for May is 79° with an average low of 55°. 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.
