S
M
T
W
T
F
S
30
95°
65°
31
88°
55°
1
81°
58°
2
96°
61°
3
101°
69°
4
100°
63°
5
98°
68°
6
89°
70°
7
89°
69°
8
84°
57°
9
79°
53°
10
91°
64°
11
90°
52°
12
84°
53°
13
72°
51°
14
69°
45°
15
74°
48°
16
76°
48°
17
73°
49°
18
74°
47°
19
78°
50°
20
78°
50°
21
78°
47°
22
81°
56°
23
83°
55°
24
78°
54°
25
78°
53°
26
76°
54°
27
81°
54°
28
81°
52°
29
74°
47°
30
65°
47°
1
65°
44°
2
64°
40°
3
64°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kennebec
Kennebec's September 2026 forecast shows daily high temperatures ranging from 64° to 91°, with overnight lows between 40° and 64°. The average high for September is 77° with an average low of 50°. 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 Kennebec. See also: October | November | December.
