S
M
T
W
T
F
S
27
72°
53°
28
73°
52°
29
74°
52°
30
73°
49°
1
70°
52°
2
71°
52°
3
71°
49°
4
72°
46°
5
70°
45°
6
63°
43°
7
60°
44°
8
61°
43°
9
64°
40°
10
60°
41°
11
61°
42°
12
64°
44°
13
59°
49°
14
58°
46°
15
57°
43°
16
57°
46°
17
56°
41°
18
55°
41°
19
53°
40°
20
54°
39°
21
53°
40°
22
52°
41°
23
55°
39°
24
54°
38°
25
54°
40°
26
55°
42°
27
56°
37°
28
53°
47°
29
50°
39°
30
50°
43°
31
Hist. Avg.
58°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Deer Island
Deer Island's October 2026 forecast shows daily high temperatures ranging from 50° to 74°, with overnight lows between 37° and 53°. The average high for October is 61° with an average low of 44°. 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 Island. See also: November | December | January.