S
M
T
W
T
F
S
30
77°
60°
31
80°
60°
1
79°
51°
2
76°
52°
3
70°
54°
4
72°
57°
5
74°
60°
6
76°
53°
7
76°
51°
8
70°
53°
9
69°
58°
10
68°
58°
11
75°
57°
12
71°
54°
13
67°
54°
14
65°
51°
15
66°
49°
16
65°
48°
17
66°
53°
18
66°
48°
19
67°
53°
20
65°
56°
21
71°
53°
22
69°
46°
23
64°
51°
24
63°
54°
25
66°
47°
26
62°
48°
27
66°
52°
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 Damariscotta
Damariscotta's September 2026 forecast shows daily high temperatures ranging from 62° to 80°, with overnight lows between 46° and 60°. The average high for September is 70° with an average low of 53°. 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.
