S
M
T
W
T
F
S
30
89°
68°
31
88°
68°
1
89°
67°
2
87°
67°
3
89°
66°
4
89°
67°
5
90°
69°
6
89°
66°
7
87°
62°
8
83°
64°
9
84°
62°
10
85°
60°
11
84°
60°
12
85°
61°
13
86°
63°
14
87°
64°
15
86°
65°
16
86°
64°
17
83°
58°
18
80°
57°
19
78°
60°
20
78°
61°
21
79°
56°
22
77°
59°
23
78°
62°
24
77°
62°
25
80°
61°
26
82°
62°
27
80°
61°
28
81°
61°
29
81°
60°
30
75°
60°
1
76°
59°
2
78°
53°
3
74°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kennesaw
Kennesaw's September 2026 forecast shows daily high temperatures ranging from 74° to 90°, with overnight lows between 52° and 69°. The average high for September is 83° with an average low of 62°. 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 Kennesaw. See also: October | November | December.
