S
M
T
W
T
F
S
30
83°
57°
31
78°
57°
1
79°
58°
2
82°
62°
3
80°
62°
4
82°
59°
5
82°
61°
6
83°
62°
7
84°
61°
8
82°
58°
9
79°
57°
10
80°
56°
11
80°
56°
12
81°
55°
13
Hist. Avg.
84°
59°
14
Hist. Avg.
84°
58°
15
Hist. Avg.
83°
58°
16
Hist. Avg.
83°
58°
17
Hist. Avg.
82°
57°
18
Hist. Avg.
82°
57°
19
Hist. Avg.
82°
56°
20
Hist. Avg.
82°
56°
21
Hist. Avg.
81°
55°
22
Hist. Avg.
81°
55°
23
Hist. Avg.
80°
54°
24
Hist. Avg.
80°
54°
25
Hist. Avg.
80°
54°
26
Hist. Avg.
80°
53°
27
Hist. Avg.
79°
52°
28
Hist. Avg.
79°
52°
29
Hist. Avg.
78°
52°
30
Hist. Avg.
78°
51°
1
Hist. Avg.
78°
51°
2
Hist. Avg.
78°
50°
3
Hist. Avg.
77°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Gatlinburg
Gatlinburg's September 2026 forecast shows daily high temperatures ranging from 78° to 84°, with overnight lows between 55° and 62°. The average high for September is 81° with an average low of 59°. 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 Gatlinburg. See also: October | November | December.
