S
M
T
W
T
F
S
30
90°
68°
31
91°
67°
1
96°
71°
2
97°
71°
3
97°
73°
4
95°
72°
5
94°
72°
6
92°
71°
7
89°
72°
8
88°
67°
9
90°
68°
10
89°
70°
11
87°
67°
12
84°
62°
13
84°
62°
14
85°
63°
15
83°
67°
16
79°
67°
17
80°
65°
18
82°
66°
19
83°
66°
20
78°
65°
21
80°
63°
22
82°
62°
23
82°
60°
24
84°
64°
25
84°
64°
26
83°
63°
27
76°
64°
28
79°
64°
29
81°
63°
30
83°
62°
1
81°
62°
2
79°
61°
3
80°
61°
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 76° to 97°, with overnight lows between 60° and 73°. The average high for September is 85° 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 Chickamauga. See also: October | November | December.
