S
M
T
W
T
F
S
31
74°
48°
1
78°
53°
2
80°
54°
3
79°
57°
4
80°
58°
5
80°
57°
6
73°
57°
7
76°
51°
8
75°
48°
9
71°
53°
10
73°
59°
11
79°
52°
12
78°
51°
13
73°
53°
14
78°
58°
15
81°
61°
16
80°
57°
17
76°
51°
18
75°
52°
19
75°
61°
20
80°
63°
21
85°
57°
22
82°
54°
23
75°
52°
24
75°
53°
25
78°
55°
26
78°
54°
27
80°
60°
28
82°
56°
29
79°
55°
30
78°
63°
1
84°
55°
2
79°
52°
3
77°
55°
4
79°
61°
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 71° to 85°, with overnight lows between 48° and 63°. The average high for June is 78° with an average low of 55°. 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.