S
M
T
W
T
F
S
29
53°
25°
30
51°
21°
1
38°
25°
2
40°
27°
3
45°
31°
4
46°
34°
5
48°
36°
6
48°
33°
7
50°
32°
8
47°
29°
9
43°
28°
10
42°
21°
11
38°
18°
12
34°
22°
13
35°
18°
14
34°
19°
15
33°
18°
16
36°
16°
17
32°
18°
18
31°
25°
19
41°
27°
20
43°
29°
21
43°
29°
22
42°
23°
23
41°
16°
24
34°
14°
25
29°
20°
26
33°
24°
27
37°
25°
28
42°
17°
29
39°
18°
30
31°
19°
31
34°
25°
1
37°
23°
2
39°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Morton
Morton's December 2026 forecast shows daily high temperatures ranging from 29° to 53°, with overnight lows between 14° and 36°. The average high for December is 40° with an average low of 24°. 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 Morton. See also: January | February | March.
