S
M
T
W
T
F
S
31
70°
44°
1
69°
44°
2
77°
44°
3
79°
54°
4
78°
56°
5
78°
60°
6
70°
59°
7
69°
55°
8
77°
56°
9
79°
59°
10
81°
61°
11
80°
61°
12
78°
62°
13
79°
59°
14
77°
60°
15
76°
61°
16
77°
64°
17
71°
53°
18
77°
58°
19
77°
57°
20
72°
55°
21
80°
51°
22
71°
51°
23
72°
52°
24
73°
60°
25
77°
59°
26
81°
54°
27
73°
52°
28
74°
55°
29
74°
52°
30
75°
55°
1
75°
54°
2
77°
58°
3
81°
60°
4
82°
61°
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 69° to 82°, with overnight lows between 51° and 64°. The average high for June is 76° with an average low of 57°. 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.
