S
M
T
W
T
F
S
29
35°
23°
30
38°
26°
1
37°
32°
2
40°
32°
3
40°
31°
4
43°
32°
5
42°
31°
6
46°
32°
7
42°
31°
8
40°
31°
9
39°
28°
10
37°
27°
11
45°
24°
12
41°
23°
13
39°
16°
14
35°
15°
15
31°
18°
16
34°
19°
17
31°
24°
18
37°
27°
19
37°
25°
20
40°
27°
21
39°
26°
22
39°
28°
23
43°
26°
24
45°
20°
25
42°
13°
26
36°
13°
27
30°
21°
28
34°
25°
29
41°
25°
30
41°
29°
31
44°
30°
1
44°
21°
2
46°
15°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Normal
Normal's December 2026 forecast shows daily high temperatures ranging from 30° to 46°, with overnight lows between 13° and 32°. The average high for December is 39° with an average low of 25°. 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 Normal. See also: January | February | March.
