S
M
T
W
T
F
S
27
74°
46°
28
71°
42°
29
64°
61°
30
77°
54°
1
60°
43°
2
59°
38°
3
63°
47°
4
62°
37°
5
60°
31°
6
73°
45°
7
64°
42°
8
61°
45°
9
67°
50°
10
74°
52°
11
64°
43°
12
48°
38°
13
49°
36°
14
53°
41°
15
53°
37°
16
50°
39°
17
52°
38°
18
53°
40°
19
50°
32°
20
53°
37°
21
56°
38°
22
55°
38°
23
54°
37°
24
42°
34°
25
42°
34°
26
47°
35°
27
52°
37°
28
52°
37°
29
51°
36°
30
49°
35°
31
49°
31°
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 42° to 74°, with overnight lows between 31° and 52°. The average high for October is 54° with an average low of 39°. 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.
