S
M
T
W
T
F
S
27
67°
47°
28
66°
49°
29
64°
45°
30
65°
45°
1
64°
49°
2
71°
47°
3
70°
48°
4
68°
44°
5
64°
43°
6
62°
48°
7
63°
47°
8
68°
48°
9
63°
50°
10
65°
46°
11
61°
47°
12
66°
46°
13
Hist. Avg.
65°
42°
14
Hist. Avg.
64°
42°
15
Hist. Avg.
64°
42°
16
Hist. Avg.
64°
41°
17
Hist. Avg.
63°
41°
18
Hist. Avg.
63°
40°
19
Hist. Avg.
63°
40°
20
Hist. Avg.
62°
40°
21
Hist. Avg.
62°
40°
22
Hist. Avg.
62°
39°
23
Hist. Avg.
61°
39°
24
Hist. Avg.
61°
39°
25
Hist. Avg.
61°
39°
26
Hist. Avg.
60°
38°
27
Hist. Avg.
60°
38°
28
Hist. Avg.
60°
38°
29
Hist. Avg.
60°
38°
30
Hist. Avg.
59°
37°
31
Hist. Avg.
59°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Cohasset
Cohasset's October 2026 forecast shows daily high temperatures ranging from 61° to 71°, with overnight lows between 43° and 50°. The average high for October is 65° 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.
