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
65°
48°
6
69°
50°
7
65°
51°
8
70°
49°
9
77°
49°
10
75°
53°
11
72°
51°
12
70°
53°
13
68°
51°
14
69°
52°
15
67°
50°
16
71°
52°
17
69°
51°
18
68°
47°
19
60°
43°
20
60°
44°
21
69°
50°
22
63°
43°
23
63°
49°
24
65°
49°
25
69°
50°
26
68°
45°
27
58°
41°
28
56°
39°
29
54°
38°
30
55°
42°
1
56°
39°
2
58°
38°
3
61°
40°
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 54° to 77°, with overnight lows between 38° and 53°. The average high for September is 65° with an average low of 47°. 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.
