S
M
T
W
T
F
S
31
67°
47°
1
64°
45°
2
63°
44°
3
65°
43°
4
71°
50°
5
66°
50°
6
71°
49°
7
70°
50°
8
66°
46°
9
67°
47°
10
67°
48°
11
73°
52°
12
76°
52°
13
73°
51°
14
69°
53°
15
77°
54°
16
76°
53°
17
78°
54°
18
77°
54°
19
77°
55°
20
76°
54°
21
77°
55°
22
79°
56°
23
79°
54°
24
78°
55°
25
76°
49°
26
79°
48°
27
75°
47°
28
79°
49°
29
79°
53°
30
74°
51°
1
80°
50°
2
75°
50°
3
74°
51°
4
76°
49°
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 43° and 56°. The average high for June is 73° with an average low of 51°. 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.
