S
M
T
W
T
F
S
27
86°
54°
28
77°
64°
29
80°
57°
30
73°
54°
1
70°
46°
2
76°
42°
3
80°
50°
4
79°
41°
5
90°
53°
6
90°
46°
7
84°
56°
8
88°
49°
9
92°
42°
10
92°
43°
11
80°
46°
12
84°
50°
13
60°
45°
14
53°
41°
15
63°
39°
16
57°
30°
17
81°
26°
18
80°
28°
19
75°
35°
20
78°
31°
21
80°
41°
22
83°
49°
23
88°
57°
24
69°
45°
25
49°
42°
26
46°
37°
27
61°
33°
28
70°
42°
29
65°
34°
30
55°
48°
31
57°
46°
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 55° to 57°, with overnight lows between 46° and 48°. The average high for October is 56° 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 Hyannis. See also: November | December | January.
