S
M
T
W
T
F
S
30
89°
69°
31
88°
67°
1
85°
65°
2
84°
65°
3
86°
64°
4
88°
66°
5
88°
68°
6
86°
66°
7
83°
63°
8
83°
63°
9
85°
62°
10
83°
61°
11
82°
61°
12
82°
60°
13
81°
61°
14
81°
60°
15
82°
61°
16
81°
61°
17
82°
63°
18
85°
64°
19
84°
63°
20
80°
61°
21
84°
62°
22
Hist. Avg.
82°
64°
23
Hist. Avg.
82°
64°
24
Hist. Avg.
82°
64°
25
Hist. Avg.
82°
63°
26
Hist. Avg.
81°
63°
27
Hist. Avg.
81°
62°
28
Hist. Avg.
81°
62°
29
Hist. Avg.
80°
62°
30
Hist. Avg.
80°
61°
1
Hist. Avg.
80°
61°
2
Hist. Avg.
79°
61°
3
Hist. Avg.
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Atlanta
Atlanta's September 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 60° and 69°. 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 Atlanta. See also: October | November | December.
