S
M
T
W
T
F
S
30
76°
53°
31
79°
45°
1
74°
43°
2
71°
45°
3
72°
50°
4
75°
52°
5
78°
44°
6
76°
42°
7
70°
43°
8
71°
46°
9
74°
50°
10
74°
45°
11
70°
49°
12
69°
48°
13
71°
43°
14
68°
41°
15
67°
40°
16
67°
48°
17
69°
50°
18
73°
50°
19
73°
49°
20
76°
48°
21
72°
41°
22
67°
42°
23
65°
41°
24
64°
39°
25
64°
41°
26
67°
42°
27
69°
48°
28
71°
47°
29
Hist. Avg.
64°
44°
30
Hist. Avg.
64°
44°
1
Hist. Avg.
63°
43°
2
Hist. Avg.
63°
43°
3
Hist. Avg.
62°
42°
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 64° to 79°, with overnight lows between 39° and 53°. The average high for September is 71° with an average low of 46°. 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.
