S
M
T
W
T
F
S
31
80°
57°
1
81°
57°
2
82°
56°
3
80°
58°
4
79°
55°
5
74°
55°
6
74°
59°
7
76°
60°
8
78°
61°
9
80°
61°
10
82°
62°
11
82°
62°
12
81°
61°
13
76°
58°
14
77°
58°
15
79°
62°
16
78°
63°
17
78°
62°
18
77°
63°
19
79°
64°
20
80°
63°
21
78°
61°
22
77°
59°
23
76°
58°
24
77°
62°
25
81°
64°
26
83°
58°
27
77°
57°
28
77°
57°
29
78°
61°
30
79°
65°
1
85°
66°
2
82°
66°
3
88°
59°
4
88°
58°
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 88°, with overnight lows between 55° and 66°. The average high for June is 79° with an average low of 60°. 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.