S
M
T
W
T
F
S
29
52°
34°
30
51°
36°
1
54°
34°
2
57°
37°
3
57°
37°
4
55°
38°
5
56°
36°
6
46°
34°
7
47°
32°
8
42°
25°
9
40°
22°
10
38°
21°
11
39°
20°
12
39°
20°
13
42°
22°
14
46°
30°
15
50°
36°
16
53°
33°
17
46°
27°
18
49°
34°
19
49°
28°
20
47°
27°
21
39°
22°
22
39°
30°
23
45°
24°
24
44°
18°
25
37°
13°
26
32°
17°
27
32°
32°
28
44°
32°
29
46°
20°
30
48°
18°
31
48°
23°
1
40°
18°
2
46°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Dewitt
Dewitt's December 2026 forecast shows daily high temperatures ranging from 32° to 57°, with overnight lows between 13° and 38°. The average high for December is 46° 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 Dewitt. See also: January | February | March.
