S
M
T
W
T
F
S
27
62°
55°
28
58°
54°
29
61°
56°
30
64°
54°
1
66°
55°
2
73°
56°
3
63°
39°
4
59°
39°
5
65°
46°
6
57°
42°
7
57°
53°
8
61°
46°
9
63°
45°
10
57°
37°
11
60°
49°
12
62°
47°
13
59°
45°
14
57°
44°
15
55°
43°
16
57°
42°
17
58°
43°
18
57°
39°
19
50°
37°
20
49°
34°
21
49°
34°
22
50°
41°
23
54°
41°
24
54°
42°
25
51°
41°
26
52°
40°
27
50°
38°
28
47°
38°
29
49°
40°
30
56°
41°
31
53°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Deer Isle
Deer Isle's October 2026 forecast shows daily high temperatures ranging from 47° to 65°, with overnight lows between 34° and 53°. The average high for October is 55° with an average low of 42°. 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 Deer Isle. See also: November | December | January.
