S
M
T
W
T
F
S
30
84°
70°
31
91°
66°
1
94°
70°
2
97°
72°
3
97°
72°
4
95°
75°
5
97°
72°
6
82°
70°
7
82°
64°
8
84°
63°
9
88°
61°
10
93°
68°
11
93°
70°
12
88°
70°
13
90°
72°
14
94°
68°
15
82°
64°
16
86°
63°
17
91°
61°
18
95°
70°
19
90°
70°
20
90°
70°
21
93°
68°
22
82°
63°
23
63°
59°
24
61°
54°
25
73°
50°
26
79°
45°
27
81°
48°
28
81°
52°
29
82°
55°
30
84°
55°
1
86°
55°
2
90°
59°
3
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cornelius
Cornelius's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Cornelius. See also: October | November | December.
