S
M
T
W
T
F
S
27
83°
66°
28
84°
64°
29
82°
66°
30
85°
72°
1
75°
67°
2
75°
52°
3
76°
56°
4
79°
50°
5
77°
48°
6
80°
54°
7
84°
55°
8
86°
57°
9
83°
58°
10
88°
61°
11
82°
56°
12
76°
49°
13
76°
52°
14
74°
52°
15
69°
39°
16
76°
53°
17
76°
52°
18
75°
48°
19
68°
48°
20
65°
42°
21
63°
44°
22
72°
52°
23
74°
52°
24
74°
51°
25
72°
50°
26
62°
49°
27
67°
50°
28
72°
46°
29
63°
42°
30
65°
48°
31
69°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Dennis
Dennis's October 2026 forecast shows daily high temperatures ranging from 62° to 88°, with overnight lows between 39° and 61°. The average high for October is 74° 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 Dennis. See also: November | December | January.
