S
M
T
W
T
F
S
30
88°
56°
31
80°
58°
1
80°
63°
2
85°
55°
3
86°
61°
4
86°
63°
5
88°
58°
6
87°
54°
7
78°
53°
8
78°
53°
9
79°
57°
10
83°
59°
11
84°
52°
12
77°
53°
13
76°
52°
14
78°
59°
15
82°
54°
16
84°
50°
17
77°
49°
18
74°
49°
19
74°
50°
20
75°
50°
21
72°
49°
22
72°
49°
23
73°
50°
24
73°
53°
25
79°
55°
26
79°
55°
27
80°
46°
28
75°
53°
29
74°
54°
30
78°
52°
1
70°
51°
2
73°
47°
3
69°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mount Holly
Mount Holly's September 2026 forecast shows daily high temperatures ranging from 69° to 88°, with overnight lows between 44° and 63°. The average high for September is 78° 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 Mount Holly. See also: October | November | December.
