S
M
T
W
T
F
S
30
91°
73°
31
93°
72°
1
94°
73°
2
92°
72°
3
90°
72°
4
89°
71°
5
88°
68°
6
89°
67°
7
91°
70°
8
93°
71°
9
93°
71°
10
92°
70°
11
92°
70°
12
91°
69°
13
91°
68°
14
92°
69°
15
92°
69°
16
85°
64°
17
Hist. Avg.
88°
66°
18
Hist. Avg.
88°
66°
19
Hist. Avg.
88°
65°
20
Hist. Avg.
88°
65°
21
Hist. Avg.
87°
65°
22
Hist. Avg.
87°
64°
23
Hist. Avg.
87°
64°
24
Hist. Avg.
86°
64°
25
Hist. Avg.
86°
63°
26
Hist. Avg.
86°
63°
27
Hist. Avg.
86°
62°
28
Hist. Avg.
85°
62°
29
Hist. Avg.
85°
61°
30
Hist. Avg.
85°
61°
1
Hist. Avg.
84°
61°
2
Hist. Avg.
84°
60°
3
Hist. Avg.
84°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cary
Cary's September 2026 forecast shows daily high temperatures ranging from 85° to 94°, with overnight lows between 64° and 73°. The average high for September is 91° with an average low of 70°. 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 Cary. See also: October | November | December.
