S
M
T
W
T
F
S
31
74°
52°
1
76°
57°
2
78°
56°
3
80°
58°
4
82°
57°
5
78°
55°
6
79°
61°
7
78°
60°
8
78°
61°
9
77°
61°
10
80°
60°
11
81°
61°
12
81°
61°
13
79°
62°
14
80°
63°
15
84°
63°
16
81°
61°
17
78°
58°
18
75°
55°
19
77°
63°
20
79°
60°
21
76°
58°
22
75°
59°
23
77°
60°
24
79°
62°
25
82°
65°
26
86°
66°
27
84°
66°
28
86°
65°
29
87°
64°
30
79°
59°
1
78°
58°
2
79°
62°
3
82°
64°
4
84°
66°
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 74° to 87°, with overnight lows between 52° and 66°. The average high for June is 80° with an average low of 61°. 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.