S
M
T
W
T
F
S
26
89°
71°
27
94°
77°
28
84°
64°
29
83°
59°
30
85°
55°
31
74°
64°
1
71°
65°
2
79°
60°
3
80°
60°
4
81°
62°
5
82°
65°
6
82°
64°
7
83°
66°
8
85°
64°
9
83°
63°
10
84°
64°
11
83°
62°
12
82°
63°
13
81°
62°
14
84°
61°
15
79°
57°
16
79°
64°
17
88°
66°
18
89°
67°
19
89°
65°
20
86°
64°
21
86°
64°
22
87°
65°
23
87°
65°
24
85°
64°
25
85°
64°
26
86°
63°
27
83°
62°
28
81°
63°
29
85°
63°
30
84°
62°
31
85°
62°
1
86°
63°
2
83°
62°
3
83°
61°
4
84°
61°
5
85°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Roanoke
Roanoke's August 2026 forecast shows daily high temperatures ranging from 71° to 89°, with overnight lows between 57° and 67°. The average high for August is 83° 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 Roanoke. See also: September | October | November.