S
M
T
W
T
F
S
26
81°
65°
27
82°
64°
28
86°
65°
29
87°
65°
30
86°
64°
31
86°
65°
1
85°
65°
2
85°
64°
3
86°
64°
4
86°
65°
5
87°
65°
6
86°
64°
7
86°
59°
8
86°
61°
9
85°
62°
10
86°
59°
11
81°
58°
12
82°
59°
13
86°
62°
14
86°
63°
15
86°
63°
16
81°
62°
17
81°
59°
18
82°
63°
19
86°
63°
20
81°
62°
21
85°
63°
22
81°
60°
23
81°
56°
24
85°
57°
25
86°
62°
26
87°
62°
27
86°
59°
28
80°
57°
29
82°
58°
30
83°
59°
31
84°
61°
1
82°
60°
2
78°
55°
3
78°
55°
4
77°
53°
5
78°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Blacksburg
Blacksburg's August 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 53° and 65°. The average high for August is 84° with an average low of 61°. 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 Blacksburg. See also: September | October | November.