S
M
T
W
T
F
S
30
82°
60°
31
78°
61°
1
79°
61°
2
83°
56°
3
83°
51°
4
75°
52°
5
74°
60°
6
80°
55°
7
79°
51°
8
73°
54°
9
72°
55°
10
73°
58°
11
76°
57°
12
81°
58°
13
80°
57°
14
80°
52°
15
79°
50°
16
71°
51°
17
71°
47°
18
72°
47°
19
70°
44°
20
68°
44°
21
67°
46°
22
68°
52°
23
69°
45°
24
71°
51°
25
74°
53°
26
70°
52°
27
76°
53°
28
76°
49°
29
75°
47°
30
67°
47°
1
68°
48°
2
73°
49°
3
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cary
Cary's September 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 44° and 61°. The average high for September is 74° with an average low of 52°. 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.
