S
M
T
W
T
F
S
30
79°
54°
31
80°
53°
1
79°
51°
2
76°
59°
3
67°
63°
4
85°
62°
5
75°
56°
6
74°
51°
7
83°
51°
8
81°
54°
9
69°
48°
10
87°
68°
11
76°
51°
12
73°
43°
13
65°
62°
14
75°
44°
15
71°
50°
16
73°
55°
17
72°
58°
18
74°
53°
19
67°
52°
20
65°
51°
21
62°
47°
22
63°
51°
23
64°
50°
24
66°
51°
25
66°
52°
26
67°
49°
27
59°
53°
28
68°
53°
29
66°
51°
30
61°
49°
1
62°
51°
2
62°
51°
3
66°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Damariscotta
Damariscotta's September 2026 forecast shows daily high temperatures ranging from 59° to 75°, with overnight lows between 44° and 62°. The average high for September is 66° with an average low of 52°. 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 Damariscotta. See also: October | November | December.
