S
M
T
W
T
F
S
26
67°
44°
27
64°
43°
28
64°
47°
29
71°
52°
30
73°
54°
1
73°
54°
2
69°
53°
3
67°
47°
4
65°
44°
5
66°
49°
6
72°
55°
7
73°
57°
8
75°
55°
9
69°
48°
10
67°
50°
11
68°
53°
12
69°
51°
13
71°
56°
14
74°
58°
15
78°
58°
16
77°
57°
17
76°
58°
18
74°
52°
19
70°
49°
20
71°
51°
21
76°
58°
22
75°
53°
23
75°
53°
24
77°
56°
25
76°
55°
26
73°
52°
27
74°
53°
28
76°
55°
29
82°
58°
30
83°
54°
31
76°
54°
1
75°
55°
2
76°
55°
3
77°
61°
4
81°
62°
5
83°
62°
6
85°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Downtown Cincinnati
Downtown Cincinnati's May 2026 forecast shows daily high temperatures ranging from 64° to 85°, with overnight lows between 43° 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 Downtown Cincinnati. See also: June | July | August.
