S
M
T
W
T
F
S
30
79°
57°
31
76°
57°
1
80°
58°
2
80°
58°
3
79°
56°
4
78°
53°
5
79°
52°
6
78°
53°
7
79°
51°
8
76°
59°
9
75°
55°
10
67°
51°
11
65°
49°
12
65°
48°
13
64°
46°
14
68°
52°
15
68°
42°
16
62°
42°
17
61°
50°
18
62°
48°
19
63°
55°
20
73°
54°
21
75°
44°
22
62°
41°
23
58°
39°
24
59°
44°
25
64°
46°
26
69°
48°
27
70°
50°
28
71°
51°
29
69°
41°
30
60°
37°
1
57°
43°
2
58°
40°
3
53°
37°
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 80°, with overnight lows between 37° and 59°. The average high for September is 69° with an average low of 49°. 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.
