S
M
T
W
T
F
S
31
68°
44°
1
58°
49°
2
78°
51°
3
77°
57°
4
86°
62°
5
87°
68°
6
87°
58°
7
61°
54°
8
65°
56°
9
71°
57°
10
73°
61°
11
77°
62°
12
73°
61°
13
75°
62°
14
77°
64°
15
79°
59°
16
71°
56°
17
71°
57°
18
73°
59°
19
73°
59°
20
74°
60°
21
73°
58°
22
73°
58°
23
74°
59°
24
74°
65°
25
75°
62°
26
76°
61°
27
75°
65°
28
79°
66°
29
76°
62°
30
75°
61°
1
74°
61°
2
76°
64°
3
77°
67°
4
78°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Charlestown
Charlestown's June 2026 forecast shows daily high temperatures ranging from 61° to 87°, with overnight lows between 51° and 68°. The average high for June is 75° 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 Charlestown. See also: July | August | September.
