S
M
T
W
T
F
S
26
82°
64°
27
83°
66°
28
80°
66°
29
80°
65°
30
81°
66°
31
84°
66°
1
86°
65°
2
86°
65°
3
87°
65°
4
87°
66°
5
83°
63°
6
82°
64°
7
83°
60°
8
82°
59°
9
82°
60°
10
83°
62°
11
87°
65°
12
87°
65°
13
88°
64°
14
87°
65°
15
83°
65°
16
83°
64°
17
84°
63°
18
82°
64°
19
86°
63°
20
81°
64°
21
84°
61°
22
84°
62°
23
86°
62°
24
86°
59°
25
84°
61°
26
85°
62°
27
86°
63°
28
85°
64°
29
85°
64°
30
84°
63°
31
85°
57°
1
80°
56°
2
79°
56°
3
82°
57°
4
84°
61°
5
84°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Holston Valley
Holston Valley's August 2026 forecast shows daily high temperatures ranging from 79° to 88°, with overnight lows between 56° and 66°. The average high for August is 84° 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 August weather will actually feel in Holston Valley. See also: September | October | November.