S
M
T
W
T
F
S
31
72°
40°
1
78°
41°
2
85°
43°
3
85°
42°
4
85°
46°
5
87°
52°
6
88°
53°
7
79°
46°
8
82°
50°
9
78°
50°
10
75°
49°
11
71°
42°
12
70°
41°
13
81°
41°
14
84°
43°
15
85°
44°
16
81°
43°
17
93°
53°
18
84°
44°
19
86°
51°
20
86°
43°
21
86°
47°
22
85°
48°
23
76°
44°
24
80°
43°
25
80°
42°
26
84°
48°
27
85°
49°
28
85°
46°
29
87°
50°
30
88°
49°
1
88°
50°
2
89°
51°
3
86°
51°
4
81°
50°
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 70° to 93°, with overnight lows between 41° and 53°. The average high for June is 83° with an average low of 47°. 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.
