S
M
T
W
T
F
S
30
69°
49°
31
78°
52°
1
81°
53°
2
72°
53°
3
63°
47°
4
68°
48°
5
68°
47°
6
73°
50°
7
73°
51°
8
74°
49°
9
76°
51°
10
77°
52°
11
72°
44°
12
64°
43°
13
65°
39°
14
73°
46°
15
75°
46°
16
73°
41°
17
62°
38°
18
62°
37°
19
63°
41°
20
61°
37°
21
60°
36°
22
61°
36°
23
61°
37°
24
58°
35°
25
59°
34°
26
64°
35°
27
69°
44°
28
68°
43°
29
58°
41°
30
60°
34°
1
66°
41°
2
64°
39°
3
65°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kelowna
Kelowna's September 2026 forecast shows daily high temperatures ranging from 58° to 81°, with overnight lows between 34° and 53°. The average high for September is 67° with an average low of 43°. 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 Kelowna. See also: October | November | December.
