S
M
T
W
T
F
S
30
74°
47°
31
78°
42°
1
81°
61°
2
74°
57°
3
68°
55°
4
75°
50°
5
73°
44°
6
77°
50°
7
62°
49°
8
64°
50°
9
70°
52°
10
55°
40°
11
77°
38°
12
71°
56°
13
58°
42°
14
64°
40°
15
68°
50°
16
61°
42°
17
64°
41°
18
56°
34°
19
61°
45°
20
50°
31°
21
56°
32°
22
63°
35°
23
65°
38°
24
68°
40°
25
69°
41°
26
71°
46°
27
65°
44°
28
64°
48°
29
62°
41°
30
59°
42°
1
62°
43°
2
63°
34°
3
53°
36°
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 71°, with overnight lows between 31° and 48°. The average high for September is 62° with an average low of 40°. 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.
