S
M
T
W
T
F
S
30
83°
62°
31
85°
63°
1
87°
64°
2
87°
66°
3
88°
65°
4
84°
65°
5
84°
66°
6
82°
60°
7
85°
60°
8
83°
63°
9
85°
62°
10
86°
64°
11
87°
65°
12
86°
64°
13
86°
64°
14
85°
62°
15
87°
64°
16
79°
63°
17
Hist. Avg.
81°
59°
18
Hist. Avg.
81°
59°
19
Hist. Avg.
81°
58°
20
Hist. Avg.
80°
58°
21
Hist. Avg.
80°
58°
22
Hist. Avg.
80°
57°
23
Hist. Avg.
79°
57°
24
Hist. Avg.
79°
56°
25
Hist. Avg.
78°
56°
26
Hist. Avg.
78°
56°
27
Hist. Avg.
78°
55°
28
Hist. Avg.
77°
55°
29
Hist. Avg.
77°
54°
30
Hist. Avg.
77°
54°
1
Hist. Avg.
76°
54°
2
Hist. Avg.
76°
53°
3
Hist. Avg.
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Loudon
Loudon's September 2026 forecast shows daily high temperatures ranging from 79° to 88°, with overnight lows between 60° and 66°. The average high for September is 85° with an average low of 63°. 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 Loudon. See also: October | November | December.
