S
M
T
W
T
F
S
1
52°
43°
2
62°
48°
3
57°
50°
4
57°
50°
5
58°
53°
6
60°
48°
7
55°
42°
8
54°
36°
9
50°
35°
10
48°
33°
11
50°
35°
12
48°
34°
13
45°
30°
14
46°
34°
15
48°
30°
16
48°
34°
17
44°
34°
18
46°
35°
19
50°
35°
20
50°
34°
21
48°
36°
22
50°
34°
23
45°
31°
24
40°
26°
25
36°
26°
26
36°
22°
27
34°
21°
28
35°
30°
29
42°
31°
30
45°
33°
1
46°
32°
2
43°
32°
3
46°
30°
4
44°
29°
5
44°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
November Weather in Southwest Harbor
Southwest Harbor's November 2026 forecast shows daily high temperatures ranging from 34° to 62°, with overnight lows between 21° and 53°. The average high for November is 47° with an average low of 35°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how November weather will actually feel in Southwest Harbor. See also: December | January | February.