S
M
T
W
T
F
S
30
89°
69°
31
89°
69°
1
90°
68°
2
90°
68°
3
89°
67°
4
89°
68°
5
88°
67°
6
89°
67°
7
89°
66°
8
90°
67°
9
90°
67°
10
89°
66°
11
89°
67°
12
88°
66°
13
89°
67°
14
87°
64°
15
88°
64°
16
86°
62°
17
87°
62°
18
88°
56°
19
78°
54°
20
77°
55°
21
81°
56°
22
82°
55°
23
84°
59°
24
83°
59°
25
83°
58°
26
82°
58°
27
80°
57°
28
82°
58°
29
79°
53°
30
76°
55°
1
81°
56°
2
82°
56°
3
81°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sweet Gum
Sweet Gum's September 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 53° and 69°. The average high for September is 85° with an average low of 62°. 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 Sweet Gum. See also: October | November | December.