S
M
T
W
T
F
S
30
68°
51°
31
82°
53°
1
82°
49°
2
65°
52°
3
72°
46°
4
62°
46°
5
73°
47°
6
72°
43°
7
66°
53°
8
77°
54°
9
81°
51°
10
80°
51°
11
69°
46°
12
70°
47°
13
56°
45°
14
67°
46°
15
68°
45°
16
72°
50°
17
75°
49°
18
77°
53°
19
76°
52°
20
73°
53°
21
73°
53°
22
72°
50°
23
70°
50°
24
65°
45°
25
58°
46°
26
57°
47°
27
57°
43°
28
56°
41°
29
55°
38°
30
54°
39°
1
54°
41°
2
55°
42°
3
53°
38°
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 38° and 53°. 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.
