S
M
T
W
T
F
S
30
80°
60°
31
77°
57°
1
75°
60°
2
76°
60°
3
81°
59°
4
81°
60°
5
76°
58°
6
76°
57°
7
81°
57°
8
79°
52°
9
78°
51°
10
75°
56°
11
75°
51°
12
79°
51°
13
80°
58°
14
80°
51°
15
76°
50°
16
71°
50°
17
72°
49°
18
74°
52°
19
78°
49°
20
77°
52°
21
77°
55°
22
78°
54°
23
77°
49°
24
75°
47°
25
76°
46°
26
75°
53°
27
75°
53°
28
74°
52°
29
75°
52°
30
74°
50°
1
71°
51°
2
74°
52°
3
74°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Blacksburg
Blacksburg's September 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 46° and 60°. The average high for September is 76° with an average low of 53°. 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 Blacksburg. See also: October | November | December.
