S
M
T
W
T
F
S
29
53°
30°
30
55°
33°
1
54°
40°
2
57°
36°
3
60°
32°
4
54°
35°
5
54°
32°
6
53°
30°
7
50°
27°
8
51°
26°
9
50°
28°
10
53°
36°
11
54°
36°
12
62°
28°
13
Hist. Avg.
56°
32°
14
Hist. Avg.
56°
32°
15
Hist. Avg.
56°
32°
16
Hist. Avg.
55°
32°
17
Hist. Avg.
55°
31°
18
Hist. Avg.
55°
31°
19
Hist. Avg.
55°
31°
20
Hist. Avg.
55°
31°
21
Hist. Avg.
54°
31°
22
Hist. Avg.
54°
31°
23
Hist. Avg.
54°
31°
24
Hist. Avg.
54°
30°
25
Hist. Avg.
54°
30°
26
Hist. Avg.
54°
30°
27
Hist. Avg.
54°
30°
28
Hist. Avg.
54°
30°
29
Hist. Avg.
53°
30°
30
Hist. Avg.
53°
30°
31
Hist. Avg.
53°
30°
1
Hist. Avg.
53°
30°
2
Hist. Avg.
53°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Mount Pleasant
Mount Pleasant's December 2026 forecast shows daily high temperatures ranging from 50° to 62°, with overnight lows between 26° and 40°. The average high for December is 54° with an average low of 32°. 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 Mount Pleasant. See also: January | February | March.
