S
M
T
W
T
F
S
30
90°
68°
31
89°
66°
1
88°
65°
2
86°
63°
3
87°
62°
4
87°
64°
5
86°
67°
6
85°
64°
7
84°
62°
8
84°
61°
9
86°
60°
10
84°
60°
11
84°
59°
12
85°
60°
13
83°
59°
14
82°
59°
15
83°
58°
16
84°
58°
17
83°
61°
18
86°
62°
19
84°
61°
20
83°
58°
21
85°
60°
22
Hist. Avg.
82°
59°
23
Hist. Avg.
82°
59°
24
Hist. Avg.
81°
58°
25
Hist. Avg.
81°
58°
26
Hist. Avg.
81°
57°
27
Hist. Avg.
80°
57°
28
Hist. Avg.
80°
57°
29
Hist. Avg.
80°
56°
30
Hist. Avg.
79°
56°
1
Hist. Avg.
79°
55°
2
Hist. Avg.
79°
55°
3
Hist. Avg.
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Roanoke
Roanoke's September 2026 forecast shows daily high temperatures ranging from 82° to 90°, with overnight lows between 58° and 68°. The average high for September is 85° with an average low of 62°. 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 Roanoke. See also: October | November | December.