S
M
T
W
T
F
S
27
73°
49°
28
72°
47°
29
70°
53°
30
65°
49°
1
72°
43°
2
64°
42°
3
61°
43°
4
62°
43°
5
67°
41°
6
61°
42°
7
61°
50°
8
64°
50°
9
69°
49°
10
69°
48°
11
67°
48°
12
65°
47°
13
66°
47°
14
64°
44°
15
68°
39°
16
67°
39°
17
59°
40°
18
58°
46°
19
62°
45°
20
63°
44°
21
63°
46°
22
65°
48°
23
67°
47°
24
67°
46°
25
66°
42°
26
66°
38°
27
56°
40°
28
54°
38°
29
54°
39°
30
53°
35°
31
54°
34°
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 53° to 73°, with overnight lows between 34° and 53°. The average high for October is 64° with an average low of 44°. 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.
