S
M
T
W
T
F
S
30
86°
64°
31
86°
64°
1
85°
63°
2
86°
63°
3
84°
60°
4
81°
57°
5
80°
56°
6
84°
59°
7
86°
62°
8
86°
63°
9
85°
63°
10
86°
62°
11
86°
63°
12
85°
63°
13
86°
62°
14
86°
60°
15
86°
60°
16
84°
58°
17
82°
59°
18
75°
54°
19
74°
50°
20
76°
50°
21
79°
51°
22
81°
53°
23
80°
57°
24
81°
49°
25
77°
49°
26
76°
50°
27
77°
55°
28
79°
54°
29
78°
54°
30
76°
47°
1
75°
53°
2
78°
53°
3
78°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mount Airy
Mount Airy's September 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 47° and 64°. The average high for September is 81° with an average low of 57°. 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 Mount Airy. See also: October | November | December.