S
M
T
W
T
F
S
27
62°
55°
28
58°
54°
29
61°
56°
30
64°
54°
1
66°
55°
2
73°
50°
3
65°
45°
4
59°
50°
5
60°
45°
6
59°
43°
7
57°
44°
8
61°
49°
9
63°
45°
10
60°
42°
11
59°
47°
12
57°
43°
13
59°
43°
14
57°
42°
15
56°
38°
16
58°
43°
17
60°
43°
18
58°
39°
19
51°
43°
20
56°
44°
21
59°
43°
22
55°
42°
23
53°
42°
24
58°
40°
25
52°
39°
26
55°
41°
27
49°
39°
28
50°
36°
29
56°
39°
30
52°
36°
31
50°
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 49° to 73°, with overnight lows between 36° and 50°. The average high for October is 57° with an average low of 43°. 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.
