S
M
T
W
T
F
S
26
86°
70°
27
86°
70°
28
87°
69°
29
85°
70°
30
86°
70°
31
87°
66°
1
86°
66°
2
86°
70°
3
87°
70°
4
86°
69°
5
87°
70°
6
89°
71°
7
88°
71°
8
87°
70°
9
89°
68°
10
90°
67°
11
89°
70°
12
92°
69°
13
87°
68°
14
89°
67°
15
91°
70°
16
91°
69°
17
90°
68°
18
88°
69°
19
90°
64°
20
87°
65°
21
86°
64°
22
85°
64°
23
85°
65°
24
86°
64°
25
85°
63°
26
86°
63°
27
86°
64°
28
87°
63°
29
90°
63°
30
90°
64°
31
89°
64°
1
89°
66°
2
88°
65°
3
89°
62°
4
85°
63°
5
85°
62°
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 85° to 92°, with overnight lows between 62° and 71°. The average high for August is 88° with an average low of 67°. 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.