S
M
T
W
T
F
S
30
66°
47°
31
76°
48°
1
72°
53°
2
64°
51°
3
63°
45°
4
65°
49°
5
68°
48°
6
70°
49°
7
72°
50°
8
73°
51°
9
71°
48°
10
64°
43°
11
62°
43°
12
62°
44°
13
63°
42°
14
61°
42°
15
62°
43°
16
62°
48°
17
58°
46°
18
58°
42°
19
59°
41°
20
58°
39°
21
58°
39°
22
59°
40°
23
58°
39°
24
60°
38°
25
63°
42°
26
62°
44°
27
54°
40°
28
53°
39°
29
53°
38°
30
54°
37°
1
53°
38°
2
52°
38°
3
52°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Slocan
Slocan's September 2026 forecast shows daily high temperatures ranging from 52° to 76°, with overnight lows between 37° and 53°. The average high for September is 62° with an average low of 44°. 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 Slocan. See also: October | November | December.