S
M
T
W
T
F
S
31
81°
63°
1
77°
66°
2
79°
59°
3
79°
54°
4
81°
55°
5
81°
59°
6
82°
61°
7
84°
64°
8
81°
68°
9
84°
70°
10
88°
68°
11
90°
70°
12
90°
72°
13
88°
66°
14
84°
66°
15
77°
63°
16
79°
61°
17
86°
61°
18
88°
70°
19
81°
64°
20
82°
59°
21
86°
64°
22
81°
65°
23
79°
58°
24
83°
62°
25
86°
64°
26
86°
63°
27
86°
61°
28
88°
62°
29
90°
67°
30
89°
68°
1
87°
67°
2
89°
65°
3
89°
66°
4
88°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Mount Pleasant
Mount Pleasant's June 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 58° and 68°. The average high for June is 86° with an average low of 64°. 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 Mount Pleasant. See also: July | August | September.