S
M
T
W
T
F
S
30
71°
48°
31
71°
48°
1
75°
51°
2
78°
54°
3
80°
58°
4
80°
54°
5
67°
51°
6
68°
49°
7
71°
53°
8
75°
52°
9
73°
52°
10
72°
46°
11
71°
47°
12
70°
50°
13
68°
46°
14
63°
44°
15
62°
43°
16
62°
41°
17
62°
44°
18
63°
44°
19
66°
48°
20
72°
50°
21
72°
46°
22
62°
42°
23
59°
42°
24
58°
41°
25
58°
39°
26
59°
40°
27
61°
40°
28
62°
44°
29
69°
43°
30
57°
38°
1
69°
48°
2
69°
50°
3
Hist. Avg.
60°
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 57° to 80°, with overnight lows between 38° and 58°. The average high for September is 68° 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.
