S
M
T
W
T
F
S
27
43°
25°
28
43°
24°
29
44°
29°
30
48°
30°
31
52°
25°
1
47°
21°
2
42°
20°
3
40°
23°
4
43°
26°
5
46°
37°
6
47°
34°
7
57°
23°
8
56°
21°
9
41°
22°
10
42°
22°
11
43°
19°
12
42°
18°
13
41°
19°
14
41°
18°
15
42°
20°
16
43°
27°
17
46°
22°
18
51°
19°
19
52°
18°
20
38°
21°
21
42°
25°
22
46°
36°
23
51°
37°
24
52°
38°
25
55°
36°
26
57°
34°
27
54°
28°
28
49°
26°
29
45°
22°
30
44°
22°
31
44°
22°
1
Hist. Avg.
51°
29°
2
Hist. Avg.
51°
29°
3
Hist. Avg.
52°
29°
4
Hist. Avg.
52°
29°
5
Hist. Avg.
52°
29°
6
Hist. Avg.
52°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Charleston
Charleston's January 2027 forecast shows daily high temperatures ranging from 38° to 57°, with overnight lows between 18° and 38°. The average high for January is 46° 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 January weather will actually feel in Charleston. See also: February | March | April.
