S
M
T
W
T
F
S
30
65°
49°
31
74°
48°
1
79°
50°
2
71°
54°
3
65°
51°
4
65°
50°
5
69°
51°
6
71°
52°
7
73°
52°
8
70°
51°
9
73°
50°
10
72°
50°
11
63°
44°
12
63°
45°
13
64°
44°
14
62°
44°
15
63°
45°
16
63°
49°
17
59°
47°
18
61°
44°
19
59°
42°
20
59°
40°
21
60°
40°
22
59°
41°
23
59°
41°
24
61°
40°
25
65°
43°
26
64°
45°
27
56°
41°
28
54°
40°
29
54°
39°
30
55°
39°
1
54°
40°
2
53°
39°
3
53°
39°
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 79°, with overnight lows between 39° and 54°. The average high for September is 63° with an average low of 45°. 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.
