S
M
T
W
T
F
S
30
71°
50°
31
70°
51°
1
69°
49°
2
69°
51°
3
70°
52°
4
68°
53°
5
70°
51°
6
69°
50°
7
67°
49°
8
68°
48°
9
66°
48°
10
68°
54°
11
67°
48°
12
68°
47°
13
71°
46°
14
70°
51°
15
70°
51°
16
67°
46°
17
65°
44°
18
67°
45°
19
68°
51°
20
69°
51°
21
71°
50°
22
67°
49°
23
70°
47°
24
68°
45°
25
66°
48°
26
63°
41°
27
68°
41°
28
60°
40°
29
59°
41°
30
63°
44°
1
62°
40°
2
Hist. Avg.
66°
40°
3
Hist. Avg.
66°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in West Kennebunk
West Kennebunk's September 2026 forecast shows daily high temperatures ranging from 59° to 71°, with overnight lows between 40° and 54°. The average high for September is 67° with an average low of 48°. 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 Kennebunk. See also: October | November | December.
