S
M
T
W
T
F
S
31
63°
48°
1
65°
48°
2
66°
47°
3
66°
45°
4
65°
45°
5
66°
48°
6
66°
50°
7
67°
51°
8
66°
51°
9
69°
50°
10
72°
46°
11
67°
44°
12
68°
46°
13
69°
47°
14
69°
45°
15
67°
45°
16
68°
46°
17
72°
49°
18
76°
53°
19
77°
55°
20
77°
54°
21
70°
50°
22
70°
48°
23
75°
56°
24
78°
54°
25
74°
52°
26
72°
51°
27
73°
50°
28
74°
53°
29
78°
55°
30
74°
50°
1
76°
51°
2
74°
50°
3
77°
53°
4
80°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Charleston
Charleston's June 2026 forecast shows daily high temperatures ranging from 63° to 80°, with overnight lows between 44° and 56°. The average high for June is 71° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Charleston. See also: July | August | September.
