S
M
T
W
T
F
S
29
43°
29°
30
43°
30°
1
43°
32°
2
42°
34°
3
44°
33°
4
43°
34°
5
46°
30°
6
42°
29°
7
41°
36°
8
46°
28°
9
47°
29°
10
43°
35°
11
45°
38°
12
49°
37°
13
50°
36°
14
49°
35°
15
48°
37°
16
47°
39°
17
50°
38°
18
50°
36°
19
49°
33°
20
46°
27°
21
42°
28°
22
41°
29°
23
40°
28°
24
40°
29°
25
41°
28°
26
40°
26°
27
40°
30°
28
41°
29°
29
44°
26°
30
42°
28°
31
38°
31°
1
41°
32°
2
41°
31°
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 38° to 50°, with overnight lows between 26° and 39°. The average high for December is 44° with an average low of 32°. 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.
