S
M
T
W
T
F
S
29
64°
47°
30
64°
47°
1
65°
44°
2
57°
36°
3
53°
33°
4
54°
35°
5
59°
43°
6
57°
36°
7
52°
35°
8
50°
32°
9
51°
34°
10
50°
31°
11
50°
31°
12
52°
32°
13
57°
33°
14
53°
34°
15
54°
42°
16
54°
36°
17
56°
38°
18
61°
34°
19
53°
28°
20
50°
27°
21
49°
28°
22
51°
31°
23
52°
31°
24
48°
29°
25
49°
27°
26
49°
29°
27
50°
27°
28
51°
28°
29
52°
36°
30
53°
32°
31
52°
29°
1
49°
25°
2
47°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Marion
Marion's December 2026 forecast shows daily high temperatures ranging from 47° to 65°, with overnight lows between 25° and 47°. The average high for December is 53° with an average low of 33°. 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 Marion. See also: January | February | March.
