S
M
T
W
T
F
S
29
54°
38°
30
54°
33°
1
52°
28°
2
46°
34°
3
50°
33°
4
49°
32°
5
48°
33°
6
50°
37°
7
51°
30°
8
50°
29°
9
46°
27°
10
44°
22°
11
38°
24°
12
34°
21°
13
38°
18°
14
32°
17°
15
30°
17°
16
34°
26°
17
38°
12°
18
37°
14°
19
27°
22°
20
33°
28°
21
39°
29°
22
37°
28°
23
38°
29°
24
40°
28°
25
40°
27°
26
41°
28°
27
42°
29°
28
Hist. Avg.
35°
21°
29
Hist. Avg.
35°
21°
30
Hist. Avg.
35°
20°
31
Hist. Avg.
35°
20°
1
Hist. Avg.
34°
20°
2
Hist. Avg.
34°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Champaign
Champaign's December 2026 forecast shows daily high temperatures ranging from 27° to 54°, with overnight lows between 12° and 38°. The average high for December is 42° with an average low of 27°. 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 Champaign. See also: January | February | March.
