S
M
T
W
T
F
S
29
56°
40°
30
55°
38°
1
47°
38°
2
55°
37°
3
51°
34°
4
43°
31°
5
47°
37°
6
44°
37°
7
46°
36°
8
45°
37°
9
44°
37°
10
46°
36°
11
41°
35°
12
45°
34°
13
46°
28°
14
40°
35°
15
50°
32°
16
47°
36°
17
49°
35°
18
51°
34°
19
46°
33°
20
41°
31°
21
37°
32°
22
50°
33°
23
48°
32°
24
38°
29°
25
35°
22°
26
38°
26°
27
41°
25°
28
38°
22°
29
34°
22°
30
36°
15°
31
34°
11°
1
30°
17°
2
30°
15°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Kansas City
Kansas City's December 2026 forecast shows daily high temperatures ranging from 30° to 56°, with overnight lows between 11° and 40°. The average high for December is 44° 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 Kansas City. See also: January | February | March.
