S
M
T
W
T
F
S
27
65°
53°
28
72°
54°
29
72°
53°
30
64°
51°
1
63°
51°
2
63°
52°
3
70°
52°
4
69°
51°
5
70°
51°
6
63°
52°
7
65°
53°
8
70°
50°
9
69°
48°
10
60°
47°
11
66°
44°
12
59°
47°
13
64°
49°
14
68°
49°
15
67°
48°
16
64°
49°
17
67°
44°
18
57°
41°
19
57°
46°
20
61°
48°
21
64°
48°
22
65°
46°
23
57°
43°
24
55°
43°
25
58°
46°
26
67°
42°
27
64°
35°
28
57°
35°
29
55°
38°
30
58°
44°
31
62°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Cohasset
Cohasset's October 2026 forecast shows daily high temperatures ranging from 55° to 72°, with overnight lows between 35° and 54°. The average high for October is 64° with an average low of 47°. 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 Cohasset. See also: November | December | January.
