S
M
T
W
T
F
S
27
66°
54°
28
57°
53°
29
60°
56°
30
62°
53°
1
66°
54°
2
71°
52°
3
64°
44°
4
61°
40°
5
65°
47°
6
57°
43°
7
58°
36°
8
62°
46°
9
62°
42°
10
57°
38°
11
58°
49°
12
65°
44°
13
49°
46°
14
58°
44°
15
57°
36°
16
53°
41°
17
52°
36°
18
53°
37°
19
53°
37°
20
54°
39°
21
57°
39°
22
55°
38°
23
56°
34°
24
48°
32°
25
49°
41°
26
57°
41°
27
55°
34°
28
46°
32°
29
46°
32°
30
47°
39°
31
51°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mount Desert
Mount Desert's October 2026 forecast shows daily high temperatures ranging from 46° to 65°, with overnight lows between 32° and 49°. The average high for October is 53° with an average low of 38°. 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 Mount Desert. See also: November | December | January.