S
M
T
W
T
F
S
29
35°
21°
30
34°
20°
1
33°
25°
2
35°
28°
3
36°
27°
4
39°
31°
5
39°
32°
6
42°
32°
7
41°
31°
8
38°
30°
9
35°
29°
10
35°
28°
11
42°
26°
12
38°
26°
13
38°
18°
14
33°
16°
15
30°
20°
16
31°
19°
17
29°
22°
18
33°
25°
19
34°
28°
20
37°
29°
21
38°
28°
22
40°
29°
23
41°
29°
24
44°
25°
25
41°
17°
26
37°
14°
27
28°
19°
28
30°
26°
29
38°
26°
30
39°
29°
31
41°
31°
1
42°
25°
2
42°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Marcellus
Marcellus's December 2026 forecast shows daily high temperatures ranging from 28° to 44°, with overnight lows between 14° and 32°. The average high for December is 37° 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 Marcellus. See also: January | February | March.
