S
M
T
W
T
F
S
27
77°
51°
28
77°
51°
29
76°
50°
30
76°
50°
1
75°
49°
2
76°
49°
3
75°
48°
4
75°
48°
5
73°
47°
6
70°
46°
7
72°
45°
8
73°
46°
9
72°
46°
10
70°
44°
11
63°
44°
12
69°
43°
13
70°
44°
14
67°
42°
15
65°
28°
16
63°
29°
17
56°
28°
18
53°
27°
19
53°
32°
20
54°
36°
21
55°
26°
22
55°
27°
23
52°
26°
24
52°
25°
25
50°
21°
26
48°
20°
27
47°
25°
28
49°
25°
29
49°
26°
30
50°
27°
31
50°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Hyannis
Hyannis's October 2026 forecast shows daily high temperatures ranging from 47° to 77°, with overnight lows between 20° and 51°. The average high for October is 63° with an average low of 37°. 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. See also: November | December | January.
