S
M
T
W
T
F
S
27
67°
49°
28
66°
51°
29
65°
48°
30
66°
48°
1
65°
51°
2
71°
49°
3
71°
52°
4
69°
47°
5
66°
46°
6
63°
52°
7
65°
50°
8
69°
51°
9
63°
53°
10
66°
50°
11
62°
50°
12
67°
49°
13
63°
49°
14
Hist. Avg.
62°
46°
15
Hist. Avg.
61°
46°
16
Hist. Avg.
61°
46°
17
Hist. Avg.
61°
45°
18
Hist. Avg.
60°
45°
19
Hist. Avg.
60°
45°
20
Hist. Avg.
60°
44°
21
Hist. Avg.
60°
44°
22
Hist. Avg.
59°
44°
23
Hist. Avg.
59°
44°
24
Hist. Avg.
59°
43°
25
Hist. Avg.
58°
43°
26
Hist. Avg.
58°
43°
27
Hist. Avg.
58°
42°
28
Hist. Avg.
58°
42°
29
Hist. Avg.
57°
42°
30
Hist. Avg.
57°
42°
31
Hist. Avg.
57°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Hyannis Port
Hyannis Port's October 2026 forecast shows daily high temperatures ranging from 62° to 71°, with overnight lows between 46° and 53°. The average high for October is 66° with an average low of 50°. 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 Hyannis Port. See also: November | December | January.