S
M
T
W
T
F
S
30
43°
37°
31
43°
35°
1
44°
33°
2
41°
30°
3
39°
29°
4
37°
30°
5
37°
30°
6
38°
32°
7
37°
33°
8
38°
32°
9
37°
31°
10
38°
32°
11
37°
31°
12
35°
30°
13
35°
31°
14
37°
29°
15
34°
30°
16
33°
31°
17
35°
28°
18
36°
27°
19
33°
27°
20
32°
28°
21
32°
30°
22
33°
31°
23
34°
28°
24
36°
25°
25
33°
29°
26
32°
29°
27
33°
27°
28
34°
26°
29
33°
25°
30
31°
24°
1
30°
23°
2
30°
27°
3
29°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cape Dorset
Cape Dorset's September 2026 forecast shows daily high temperatures ranging from 29° to 44°, with overnight lows between 22° and 37°. The average high for September is 35° with an average low of 29°. 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 Dorset. See also: October | November | December.
