S
M
T
W
T
F
S
29
64°
42°
30
62°
41°
1
63°
31°
2
48°
27°
3
49°
29°
4
55°
37°
5
55°
34°
6
48°
29°
7
47°
27°
8
46°
25°
9
46°
25°
10
45°
27°
11
51°
28°
12
55°
32°
13
53°
32°
14
49°
30°
15
48°
32°
16
46°
34°
17
48°
30°
18
46°
25°
19
47°
24°
20
43°
23°
21
43°
25°
22
47°
30°
23
47°
28°
24
44°
24°
25
43°
23°
26
43°
25°
27
44°
24°
28
45°
25°
29
44°
29°
30
44°
25°
31
45°
24°
1
43°
22°
2
41°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Morrilton
Morrilton's December 2026 forecast shows daily high temperatures ranging from 41° to 64°, with overnight lows between 22° and 42°. The average high for December is 48° with an average low of 28°. 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 Morrilton. See also: January | February | March.