S
M
T
W
T
F
S
30
74°
52°
31
70°
52°
1
70°
50°
2
69°
57°
3
70°
57°
4
75°
51°
5
69°
50°
6
68°
57°
7
71°
58°
8
72°
57°
9
75°
58°
10
76°
55°
11
72°
55°
12
68°
53°
13
73°
55°
14
73°
55°
15
Hist. Avg.
67°
51°
16
Hist. Avg.
66°
50°
17
Hist. Avg.
66°
50°
18
Hist. Avg.
66°
50°
19
Hist. Avg.
65°
49°
20
Hist. Avg.
65°
49°
21
Hist. Avg.
65°
49°
22
Hist. Avg.
64°
48°
23
Hist. Avg.
64°
48°
24
Hist. Avg.
64°
47°
25
Hist. Avg.
63°
47°
26
Hist. Avg.
63°
47°
27
Hist. Avg.
63°
46°
28
Hist. Avg.
62°
46°
29
Hist. Avg.
62°
46°
30
Hist. Avg.
62°
45°
1
Hist. Avg.
61°
45°
2
Hist. Avg.
61°
44°
3
Hist. Avg.
60°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cape Vincent
Cape Vincent's September 2026 forecast shows daily high temperatures ranging from 68° to 76°, with overnight lows between 50° and 58°. The average high for September is 72° with an average low of 55°. 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 Cape Vincent. See also: October | November | December.
