S
M
T
W
T
F
S
27
77°
45°
28
79°
48°
29
82°
51°
30
88°
55°
1
92°
65°
2
77°
62°
3
75°
53°
4
77°
50°
5
74°
47°
6
75°
44°
7
82°
46°
8
82°
52°
9
85°
48°
10
69°
57°
11
65°
57°
12
85°
52°
13
89°
61°
14
83°
69°
15
83°
69°
16
75°
51°
17
58°
41°
18
67°
35°
19
70°
38°
20
73°
40°
21
74°
40°
22
72°
42°
23
72°
42°
24
73°
41°
25
75°
42°
26
75°
44°
27
76°
45°
28
77°
49°
29
77°
48°
30
75°
50°
31
71°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Charlestown
Charlestown's October 2026 forecast shows daily high temperatures ranging from 71° to 75°, with overnight lows between 50° and 56°. The average high for October is 73° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Charlestown. See also: November | December | January.