S
M
T
W
T
F
S
30
80°
44°
31
77°
50°
1
76°
45°
2
70°
52°
3
63°
58°
4
70°
58°
5
67°
55°
6
67°
47°
7
70°
52°
8
70°
50°
9
66°
53°
10
69°
55°
11
67°
53°
12
68°
52°
13
65°
54°
14
68°
53°
15
67°
49°
16
68°
54°
17
69°
53°
18
67°
52°
19
70°
52°
20
69°
51°
21
69°
51°
22
68°
50°
23
68°
51°
24
67°
50°
25
65°
50°
26
67°
51°
27
68°
52°
28
67°
50°
29
66°
49°
30
63°
49°
1
65°
47°
2
60°
45°
3
58°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dennysville
Dennysville's September 2026 forecast shows daily high temperatures ranging from 58° to 70°, with overnight lows between 45° and 58°. The average high for September is 67° with an average low of 51°. 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 Dennysville. See also: October | November | December.
