S
M
T
W
T
F
S
29
40°
25°
30
41°
26°
1
41°
31°
2
44°
34°
3
42°
34°
4
51°
33°
5
44°
37°
6
49°
35°
7
46°
35°
8
42°
33°
9
40°
29°
10
39°
30°
11
53°
35°
12
53°
28°
13
54°
25°
14
39°
23°
15
38°
27°
16
40°
24°
17
37°
29°
18
42°
35°
19
45°
36°
20
51°
36°
21
51°
35°
22
50°
36°
23
50°
38°
24
53°
31°
25
53°
24°
26
51°
23°
27
36°
28°
28
43°
34°
29
48°
34°
30
48°
37°
31
51°
38°
1
52°
31°
2
53°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Downtown Cincinnati
Downtown Cincinnati's December 2026 forecast shows daily high temperatures ranging from 36° to 54°, with overnight lows between 23° and 38°. The average high for December is 46° with an average low of 31°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Downtown Cincinnati. See also: January | February | March.
