S
M
T
W
T
F
S
30
71°
55°
31
70°
50°
1
72°
57°
2
69°
52°
3
69°
50°
4
71°
48°
5
74°
53°
6
77°
55°
7
73°
46°
8
68°
49°
9
73°
54°
10
67°
46°
11
65°
45°
12
64°
45°
13
63°
46°
14
62°
43°
15
62°
42°
16
63°
43°
17
65°
49°
18
62°
48°
19
61°
43°
20
62°
49°
21
62°
44°
22
65°
43°
23
64°
42°
24
63°
45°
25
68°
50°
26
67°
42°
27
57°
37°
28
55°
36°
29
54°
37°
30
53°
39°
1
53°
44°
2
54°
39°
3
55°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kaslo
Kaslo's September 2026 forecast shows daily high temperatures ranging from 53° to 77°, with overnight lows between 36° and 57°. The average high for September is 64° with an average low of 46°. 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 Kaslo. See also: October | November | December.
