S
M
T
W
T
F
S
30
89°
58°
31
80°
52°
1
71°
46°
2
70°
50°
3
66°
52°
4
75°
46°
5
77°
50°
6
81°
50°
7
85°
56°
8
91°
59°
9
97°
66°
10
100°
72°
11
95°
64°
12
86°
60°
13
80°
64°
14
86°
53°
15
88°
58°
16
75°
48°
17
73°
47°
18
84°
53°
19
91°
60°
20
73°
58°
21
75°
56°
22
77°
57°
23
79°
56°
24
80°
54°
25
85°
50°
26
79°
50°
27
78°
51°
28
77°
50°
29
79°
49°
30
79°
50°
1
81°
52°
2
76°
47°
3
79°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cobb
Cobb's September 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 47° and 58°. The average high for September is 78° with an average low of 52°. 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 Cobb. See also: October | November | December.
