S
M
T
W
T
F
S
30
84°
76°
31
91°
71°
1
94°
72°
2
94°
75°
3
95°
75°
4
94°
75°
5
97°
72°
6
94°
72°
7
78°
71°
8
85°
69°
9
87°
67°
10
89°
69°
11
92°
71°
12
83°
71°
13
89°
72°
14
91°
69°
15
82°
72°
16
87°
70°
17
88°
69°
18
92°
71°
19
90°
71°
20
88°
69°
21
90°
69°
22
83°
72°
23
71°
62°
24
71°
58°
25
78°
57°
26
81°
60°
27
79°
57°
28
80°
58°
29
81°
62°
30
77°
64°
1
78°
63°
2
79°
64°
3
76°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Flowery Branch
Flowery Branch's September 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 57° and 64°. The average high for September is 77° with an average low of 61°. 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 Flowery Branch. See also: October | November | December.