S
M
T
W
T
F
S
30
91°
70°
31
90°
69°
1
89°
68°
2
89°
66°
3
88°
68°
4
88°
63°
5
87°
67°
6
89°
66°
7
88°
67°
8
87°
68°
9
88°
67°
10
87°
67°
11
87°
66°
12
82°
66°
13
82°
65°
14
81°
66°
15
81°
66°
16
82°
64°
17
82°
63°
18
83°
62°
19
80°
61°
20
80°
57°
21
78°
57°
22
79°
58°
23
81°
59°
24
82°
62°
25
83°
63°
26
82°
62°
27
82°
61°
28
78°
56°
29
78°
54°
30
77°
55°
1
Hist. Avg.
79°
58°
2
Hist. Avg.
78°
57°
3
Hist. Avg.
78°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chickamauga
Chickamauga's September 2026 forecast shows daily high temperatures ranging from 77° to 91°, with overnight lows between 54° and 70°. The average high for September is 84° with an average low of 63°. 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 Chickamauga. See also: October | November | December.
