S
M
T
W
T
F
S
30
92°
70°
31
95°
69°
1
96°
70°
2
98°
75°
3
100°
73°
4
97°
73°
5
98°
71°
6
95°
71°
7
91°
70°
8
90°
69°
9
91°
70°
10
95°
69°
11
96°
68°
12
91°
69°
13
90°
66°
14
90°
67°
15
91°
66°
16
82°
66°
17
82°
64°
18
80°
65°
19
81°
66°
20
82°
65°
21
85°
65°
22
81°
64°
23
86°
64°
24
85°
63°
25
80°
64°
26
83°
64°
27
85°
57°
28
77°
54°
29
76°
53°
30
77°
52°
1
76°
55°
2
78°
60°
3
75°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Atlanta Junction
Atlanta Junction's September 2026 forecast shows daily high temperatures ranging from 75° to 100°, with overnight lows between 52° and 75°. The average high for September is 86° with an average low of 65°. 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 Junction. See also: October | November | December.