S
M
T
W
T
F
S
29
68°
48°
30
73°
52°
31
77°
55°
1
79°
59°
2
77°
61°
3
79°
63°
4
79°
61°
5
79°
68°
6
70°
59°
7
68°
57°
8
64°
54°
9
70°
48°
10
72°
54°
11
81°
50°
12
77°
54°
13
77°
57°
14
79°
57°
15
72°
65°
16
77°
66°
17
88°
66°
18
82°
68°
19
84°
57°
20
70°
48°
21
72°
52°
22
79°
54°
23
82°
61°
24
79°
59°
25
82°
64°
26
81°
61°
27
63°
54°
28
73°
54°
29
79°
61°
30
75°
61°
1
70°
59°
2
64°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Charleston
Charleston's April 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April 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 April weather will actually feel in Charleston. See also: May | June | July.