S
M
T
W
T
F
S
30
91°
75°
31
92°
76°
1
91°
76°
2
93°
78°
3
92°
77°
4
91°
76°
5
93°
75°
6
93°
77°
7
92°
76°
8
93°
78°
9
92°
77°
10
93°
76°
11
88°
76°
12
88°
77°
13
89°
77°
14
88°
76°
15
88°
76°
16
89°
77°
17
88°
77°
18
89°
76°
19
89°
77°
20
90°
77°
21
90°
76°
22
88°
76°
23
86°
75°
24
87°
76°
25
87°
76°
26
88°
75°
27
87°
76°
28
87°
76°
29
88°
75°
30
88°
76°
1
87°
74°
2
87°
75°
3
88°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cape Sable
Cape Sable's September 2026 forecast shows daily high temperatures ranging from 86° to 93°, with overnight lows between 74° and 78°. The average high for September is 89° with an average low of 76°. 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 Sable. See also: October | November | December.
