S
M
T
W
T
F
S
30
32°
17°
1
27°
14°
2
23°
18°
3
34°
20°
4
21°
1°
5
33°
-1°
6
40°
27°
7
35°
19°
8
26°
9°
9
41°
26°
10
43°
29°
11
29°
25°
12
32°
26°
13
29°
1°
14
3°
-8°
15
31°
-1°
16
44°
18°
17
45°
31°
18
54°
23°
19
32°
18°
20
47°
30°
21
41°
22°
22
46°
29°
23
60°
34°
24
57°
33°
25
58°
50°
26
59°
45°
27
60°
43°
28
71°
19°
29
22°
12°
30
32°
13°
31
38°
26°
1
37°
20°
2
31°
26°
3
38°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Chatham
Chatham's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 Chatham. See also: January | February | March.
