S
M
T
W
T
F
S
30
86°
72°
31
92°
69°
1
96°
71°
2
98°
74°
3
99°
72°
4
97°
73°
5
95°
68°
6
89°
70°
7
84°
66°
8
85°
65°
9
88°
66°
10
88°
67°
11
90°
66°
12
86°
63°
13
84°
62°
14
86°
63°
15
84°
66°
16
79°
66°
17
78°
65°
18
81°
65°
19
78°
62°
20
77°
60°
21
77°
60°
22
78°
61°
23
80°
62°
24
83°
64°
25
82°
63°
26
76°
62°
27
75°
63°
28
76°
63°
29
74°
62°
30
77°
61°
1
73°
61°
2
73°
60°
3
75°
60°
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 73° to 99°, with overnight lows between 60° and 74°. The average high for September is 83° with an average low of 65°. 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.
