S
M
T
W
T
F
S
31
N/A
1
62°
39°
2
66°
46°
3
72°
50°
4
75°
51°
5
81°
59°
6
80°
60°
7
76°
59°
8
71°
57°
9
74°
56°
10
70°
58°
11
74°
59°
12
78°
60°
13
76°
58°
14
77°
56°
15
71°
54°
16
69°
54°
17
70°
55°
18
71°
57°
19
72°
57°
20
72°
58°
21
73°
56°
22
72°
56°
23
72°
58°
24
73°
63°
25
73°
60°
26
74°
58°
27
74°
63°
28
77°
64°
29
75°
61°
30
74°
59°
1
73°
59°
2
74°
63°
3
76°
65°
4
77°
66°
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 62° to 81°, with overnight lows between 39° and 66°. The average high for June is 73° with an average low of 57°. 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.
