S
M
T
W
T
F
S
31
78°
49°
1
78°
50°
2
75°
53°
3
80°
56°
4
83°
60°
5
90°
65°
6
90°
66°
7
86°
65°
8
88°
64°
9
83°
61°
10
84°
63°
11
82°
64°
12
82°
63°
13
82°
61°
14
82°
63°
15
82°
59°
16
76°
58°
17
77°
58°
18
79°
59°
19
80°
60°
20
82°
62°
21
81°
65°
22
80°
64°
23
80°
66°
24
81°
66°
25
82°
63°
26
81°
63°
27
87°
66°
28
86°
67°
29
83°
63°
30
82°
62°
1
82°
62°
2
83°
65°
3
84°
68°
4
88°
68°
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 75° to 90°, with overnight lows between 50° and 68°. The average high for June is 82° with an average low of 62°. 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.