S
M
T
W
T
F
S
30
71°
35°
31
74°
37°
1
76°
38°
2
78°
41°
3
80°
42°
4
81°
44°
5
82°
41°
6
80°
37°
7
78°
41°
8
79°
37°
9
67°
31°
10
65°
35°
11
68°
40°
12
74°
41°
13
70°
42°
14
67°
32°
15
65°
32°
16
72°
28°
17
73°
33°
18
73°
31°
19
Hist. Avg.
69°
24°
20
Hist. Avg.
69°
24°
21
Hist. Avg.
68°
24°
22
Hist. Avg.
68°
24°
23
Hist. Avg.
68°
23°
24
Hist. Avg.
67°
23°
25
Hist. Avg.
67°
23°
26
Hist. Avg.
66°
23°
27
Hist. Avg.
66°
22°
28
Hist. Avg.
65°
22°
29
Hist. Avg.
65°
22°
30
Hist. Avg.
64°
22°
1
Hist. Avg.
64°
22°
2
Hist. Avg.
63°
22°
3
Hist. Avg.
63°
21°
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 65° to 82°, with overnight lows between 28° and 44°. The average high for September is 74° with an average low of 37°. 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.
