S
M
T
W
T
F
S
30
70°
56°
31
70°
60°
1
77°
61°
2
76°
58°
3
75°
54°
4
75°
59°
5
74°
53°
6
75°
51°
7
68°
54°
8
67°
57°
9
68°
53°
10
72°
50°
11
68°
57°
12
69°
51°
13
73°
51°
14
69°
49°
15
67°
56°
16
71°
48°
17
Hist. Avg.
70°
49°
18
Hist. Avg.
70°
48°
19
Hist. Avg.
70°
48°
20
Hist. Avg.
69°
48°
21
Hist. Avg.
69°
47°
22
Hist. Avg.
68°
47°
23
Hist. Avg.
68°
46°
24
Hist. Avg.
68°
46°
25
Hist. Avg.
67°
46°
26
Hist. Avg.
67°
45°
27
Hist. Avg.
66°
45°
28
Hist. Avg.
66°
45°
29
Hist. Avg.
66°
44°
30
Hist. Avg.
65°
44°
1
Hist. Avg.
65°
43°
2
Hist. Avg.
64°
43°
3
Hist. Avg.
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in West Boothbay Harbor
West Boothbay Harbor's September 2026 forecast shows daily high temperatures ranging from 67° to 77°, with overnight lows between 48° and 61°. The average high for September is 71° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in West Boothbay Harbor. See also: October | November | December.
