S
M
T
W
T
F
S
29
60°
40°
30
65°
45°
1
66°
46°
2
66°
37°
3
70°
35°
4
58°
33°
5
56°
34°
6
57°
35°
7
61°
41°
8
63°
44°
9
54°
34°
10
55°
34°
11
Hist. Avg.
66°
38°
12
Hist. Avg.
66°
38°
13
Hist. Avg.
66°
38°
14
Hist. Avg.
65°
37°
15
Hist. Avg.
65°
37°
16
Hist. Avg.
65°
37°
17
Hist. Avg.
65°
37°
18
Hist. Avg.
65°
37°
19
Hist. Avg.
64°
37°
20
Hist. Avg.
64°
37°
21
Hist. Avg.
64°
37°
22
Hist. Avg.
64°
36°
23
Hist. Avg.
64°
36°
24
Hist. Avg.
64°
36°
25
Hist. Avg.
64°
36°
26
Hist. Avg.
64°
36°
27
Hist. Avg.
63°
36°
28
Hist. Avg.
63°
36°
29
Hist. Avg.
63°
36°
30
Hist. Avg.
63°
36°
31
Hist. Avg.
63°
36°
1
Hist. Avg.
63°
36°
2
Hist. Avg.
63°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Clayton
Clayton's December 2026 forecast shows daily high temperatures ranging from 54° to 70°, with overnight lows between 33° and 46°. The average high for December is 61° with an average low of 38°. 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 Clayton. See also: January | February | March.