S
M
T
W
T
F
S
29
60°
29°
30
55°
27°
1
44°
27°
2
45°
28°
3
49°
33°
4
51°
42°
5
53°
45°
6
59°
40°
7
61°
38°
8
54°
38°
9
49°
37°
10
49°
31°
11
48°
26°
12
42°
30°
13
43°
25°
14
41°
24°
15
40°
25°
16
41°
25°
17
41°
24°
18
40°
28°
19
44°
34°
20
48°
39°
21
51°
38°
22
55°
36°
23
49°
31°
24
44°
24°
25
40°
23°
26
39°
25°
27
44°
26°
28
47°
27°
29
48°
24°
30
40°
23°
31
41°
26°
1
44°
28°
2
50°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Sikeston
Sikeston's December 2026 forecast shows daily high temperatures ranging from 39° to 61°, with overnight lows between 23° and 45°. The average high for December is 47° with an average low of 30°. 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 Sikeston. See also: January | February | March.