S
M
T
W
T
F
S
29
51°
39°
30
55°
38°
1
52°
37°
2
53°
34°
3
42°
34°
4
48°
32°
5
52°
37°
6
49°
35°
7
41°
27°
8
39°
23°
9
38°
23°
10
38°
28°
11
40°
35°
12
43°
30°
13
43°
29°
14
38°
22°
15
38°
27°
16
39°
31°
17
42°
30°
18
44°
28°
19
43°
22°
20
40°
21°
21
36°
21°
22
35°
25°
23
38°
29°
24
39°
26°
25
38°
20°
26
36°
16°
27
34°
19°
28
33°
19°
29
34°
17°
30
34°
24°
31
38°
20°
1
39°
17°
2
34°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cincinnati
Cincinnati's December 2026 forecast shows daily high temperatures ranging from 33° to 55°, with overnight lows between 13° and 39°. The average high for December is 41° with an average low of 27°. 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 Cincinnati. See also: January | February | March.
