S
M
T
W
T
F
S
30
60°
35°
31
60°
35°
1
59°
38°
2
60°
38°
3
56°
35°
4
61°
34°
5
62°
35°
6
57°
34°
7
57°
34°
8
58°
33°
9
58°
33°
10
57°
35°
11
58°
39°
12
59°
33°
13
62°
35°
14
63°
40°
15
59°
37°
16
59°
39°
17
59°
36°
18
59°
40°
19
Hist. Avg.
61°
40°
20
Hist. Avg.
61°
40°
21
Hist. Avg.
61°
40°
22
Hist. Avg.
62°
40°
23
Hist. Avg.
62°
40°
24
Hist. Avg.
62°
40°
25
Hist. Avg.
62°
41°
26
Hist. Avg.
62°
41°
27
Hist. Avg.
63°
41°
28
Hist. Avg.
63°
41°
29
Hist. Avg.
63°
41°
30
Hist. Avg.
63°
41°
1
Hist. Avg.
63°
42°
2
Hist. Avg.
64°
42°
3
Hist. Avg.
64°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Black Mountain
Black Mountain's September 2026 forecast shows daily high temperatures ranging from 56° to 63°, with overnight lows between 33° and 40°. The average high for September is 59° with an average low of 36°. 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 Black Mountain. See also: October | November | December.
