S
M
T
W
T
F
S
30
85°
63°
31
84°
67°
1
86°
68°
2
83°
63°
3
82°
62°
4
81°
62°
5
81°
61°
6
82°
61°
7
82°
62°
8
83°
62°
9
84°
66°
10
86°
62°
11
85°
62°
12
85°
65°
13
84°
66°
14
85°
66°
15
85°
65°
16
84°
65°
17
85°
63°
18
84°
63°
19
83°
62°
20
82°
63°
21
80°
62°
22
81°
57°
23
77°
58°
24
75°
61°
25
Hist. Avg.
80°
60°
26
Hist. Avg.
79°
59°
27
Hist. Avg.
79°
59°
28
Hist. Avg.
79°
58°
29
Hist. Avg.
78°
58°
30
Hist. Avg.
78°
57°
1
Hist. Avg.
78°
57°
2
Hist. Avg.
78°
56°
3
Hist. Avg.
77°
56°
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 75° to 86°, with overnight lows between 57° and 68°. The average high for September is 83° with an average low of 63°. 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.
