S
M
T
W
T
F
S
30
84°
63°
31
85°
57°
1
80°
56°
2
79°
56°
3
82°
57°
4
84°
61°
5
84°
60°
6
83°
60°
7
79°
58°
8
78°
57°
9
78°
54°
10
77°
54°
11
78°
52°
12
77°
54°
13
76°
53°
14
75°
52°
15
76°
53°
16
77°
55°
17
76°
56°
18
79°
56°
19
78°
52°
20
Hist. Avg.
76°
52°
21
Hist. Avg.
76°
51°
22
Hist. Avg.
76°
51°
23
Hist. Avg.
75°
50°
24
Hist. Avg.
75°
50°
25
Hist. Avg.
75°
49°
26
Hist. Avg.
74°
49°
27
Hist. Avg.
74°
48°
28
Hist. Avg.
74°
48°
29
Hist. Avg.
73°
48°
30
Hist. Avg.
73°
47°
1
Hist. Avg.
72°
47°
2
Hist. Avg.
72°
46°
3
Hist. Avg.
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Holston Valley
Holston Valley's September 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 52° and 63°. The average high for September is 79° with an average low of 56°. 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 Holston Valley. See also: October | November | December.
