S
M
T
W
T
F
S
30
83°
56°
31
80°
56°
1
72°
56°
2
70°
61°
3
70°
59°
4
73°
58°
5
72°
57°
6
72°
59°
7
73°
59°
8
74°
58°
9
72°
60°
10
73°
59°
11
73°
54°
12
70°
55°
13
71°
57°
14
73°
57°
15
67°
56°
16
69°
57°
17
72°
56°
18
64°
54°
19
66°
50°
20
65°
55°
21
71°
57°
22
71°
56°
23
70°
55°
24
70°
55°
25
69°
54°
26
71°
55°
27
70°
54°
28
69°
53°
29
68°
50°
30
60°
48°
1
58°
44°
2
58°
52°
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 58° to 83°, with overnight lows between 44° and 61°. The average high for September is 70° with an average low of 55°. 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.
