S
M
T
W
T
F
S
29
48°
39°
30
56°
35°
1
54°
40°
2
57°
38°
3
50°
34°
4
48°
28°
5
53°
25°
6
40°
26°
7
45°
36°
8
46°
31°
9
48°
26°
10
44°
24°
11
41°
23°
12
40°
21°
13
41°
28°
14
43°
34°
15
46°
35°
16
55°
34°
17
55°
27°
18
45°
27°
19
43°
23°
20
39°
24°
21
44°
26°
22
47°
29°
23
48°
31°
24
46°
28°
25
43°
30°
26
41°
27°
27
40°
24°
28
41°
27°
29
45°
24°
30
43°
24°
31
41°
22°
1
41°
23°
2
39°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Carbondale
Carbondale's December 2026 forecast shows daily high temperatures ranging from 39° to 57°, with overnight lows between 21° and 40°. The average high for December is 46° 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 Carbondale. See also: January | February | March.
