S
M
T
W
T
F
S
30
71°
55°
31
74°
58°
1
72°
52°
2
67°
48°
3
68°
47°
4
69°
52°
5
71°
47°
6
66°
46°
7
65°
46°
8
67°
45°
9
67°
50°
10
71°
55°
11
72°
52°
12
70°
50°
13
66°
45°
14
67°
46°
15
67°
46°
16
69°
47°
17
73°
46°
18
61°
42°
19
61°
42°
20
64°
41°
21
68°
51°
22
70°
52°
23
69°
51°
24
60°
49°
25
59°
42°
26
57°
39°
27
56°
37°
28
56°
39°
29
57°
39°
30
57°
42°
1
60°
47°
2
58°
43°
3
55°
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 55° to 74°, with overnight lows between 37° and 58°. The average high for September is 65° 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.
