S
M
T
W
T
F
S
30
95°
72°
31
97°
72°
1
98°
73°
2
99°
74°
3
100°
74°
4
99°
73°
5
100°
73°
6
97°
69°
7
91°
67°
8
97°
76°
9
97°
76°
10
95°
70°
11
84°
70°
12
92°
69°
13
96°
72°
14
96°
73°
15
98°
73°
16
100°
73°
17
99°
72°
18
97°
72°
19
97°
72°
20
94°
71°
21
88°
66°
22
84°
63°
23
85°
63°
24
83°
62°
25
84°
61°
26
85°
62°
27
86°
61°
28
85°
62°
29
86°
61°
30
86°
61°
1
85°
60°
2
85°
61°
3
86°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kennett
Kennett's September 2026 forecast shows daily high temperatures ranging from 83° to 100°, with overnight lows between 60° and 73°. The average high for September is 89° with an average low of 66°. 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 Kennett. See also: October | November | December.