S
M
T
W
T
F
S
30
73°
53°
31
74°
49°
1
73°
44°
2
59°
41°
3
61°
45°
4
58°
37°
5
58°
36°
6
59°
47°
7
61°
48°
8
65°
49°
9
71°
45°
10
72°
41°
11
66°
47°
12
66°
47°
13
61°
49°
14
67°
48°
15
68°
49°
16
66°
50°
17
69°
49°
18
69°
48°
19
68°
45°
20
65°
43°
21
58°
39°
22
61°
34°
23
54°
39°
24
59°
43°
25
56°
41°
26
54°
38°
27
51°
34°
28
50°
38°
29
55°
41°
30
59°
41°
1
60°
40°
2
59°
38°
3
58°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kapuskasing Airport
Kapuskasing Airport's September 2026 forecast shows daily high temperatures ranging from 50° to 74°, with overnight lows between 34° and 53°. The average high for September is 62° with an average low of 43°. 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 Kapuskasing Airport. See also: October | November | December.
