S
M
T
W
T
F
S
30
78°
58°
31
77°
57°
1
76°
58°
2
77°
60°
3
76°
63°
4
77°
58°
5
79°
58°
6
77°
57°
7
76°
56°
8
77°
55°
9
76°
57°
10
75°
57°
11
76°
55°
12
74°
54°
13
74°
54°
14
75°
55°
15
76°
60°
16
79°
59°
17
77°
53°
18
73°
52°
19
72°
53°
20
73°
57°
21
72°
52°
22
72°
53°
23
75°
56°
24
76°
57°
25
77°
58°
26
76°
49°
27
75°
50°
28
69°
49°
29
69°
48°
30
68°
48°
1
Hist. Avg.
70°
53°
2
Hist. Avg.
69°
53°
3
Hist. Avg.
69°
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 68° to 79°, with overnight lows between 48° and 63°. The average high for September is 75° with an average low of 55°. 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.