S
M
T
W
T
F
S
30
85°
58°
31
80°
67°
1
91°
72°
2
73°
69°
3
88°
69°
4
86°
72°
5
81°
66°
6
79°
63°
7
79°
61°
8
83°
57°
9
87°
64°
10
88°
73°
11
81°
63°
12
82°
58°
13
83°
69°
14
76°
57°
15
75°
52°
16
82°
57°
17
84°
70°
18
84°
68°
19
74°
61°
20
75°
64°
21
72°
63°
22
64°
57°
23
69°
54°
24
N/A
25
72°
54°
26
62°
56°
27
64°
57°
28
64°
59°
29
72°
59°
30
76°
62°
1
81°
62°
2
78°
62°
3
76°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cornwells Heights
Cornwells Heights's September 2026 forecast shows daily high temperatures ranging from 62° to 81°, with overnight lows between 54° and 62°. The average high for September is 72° with an average low of 59°. 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 Cornwells Heights. See also: October | November | December.
