S
M
T
W
T
F
S
31
94°
73°
1
96°
73°
2
87°
72°
3
87°
69°
4
84°
69°
5
84°
74°
6
80°
72°
7
83°
73°
8
92°
75°
9
94°
74°
10
93°
75°
11
92°
72°
12
90°
71°
13
92°
68°
14
86°
63°
15
86°
62°
16
86°
66°
17
89°
68°
18
89°
69°
19
88°
66°
20
87°
69°
21
84°
68°
22
84°
69°
23
85°
70°
24
87°
70°
25
89°
69°
26
89°
71°
27
90°
70°
28
88°
70°
29
87°
71°
30
89°
71°
1
91°
72°
2
93°
71°
3
93°
72°
4
94°
69°
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 80° to 94°, with overnight lows between 62° and 75°. The average high for June is 89° with an average low of 70°. 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.
