S
M
T
W
T
F
S
27
65°
55°
28
71°
56°
29
71°
55°
30
64°
55°
1
64°
54°
2
65°
55°
3
70°
54°
4
68°
55°
5
70°
54°
6
63°
54°
7
66°
55°
8
68°
53°
9
69°
52°
10
62°
51°
11
66°
48°
12
59°
51°
13
64°
52°
14
68°
52°
15
67°
51°
16
64°
52°
17
67°
48°
18
58°
46°
19
57°
49°
20
62°
51°
21
64°
50°
22
65°
49°
23
59°
47°
24
56°
47°
25
60°
49°
26
67°
44°
27
64°
38°
28
57°
38°
29
55°
42°
30
58°
46°
31
62°
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 55° to 71°, with overnight lows between 38° and 56°. The average high for October is 64° 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.
