S
M
T
W
T
F
S
30
66°
50°
31
78°
51°
1
82°
54°
2
73°
56°
3
64°
51°
4
63°
47°
5
70°
49°
6
76°
47°
7
73°
53°
8
77°
49°
9
81°
53°
10
75°
53°
11
73°
43°
12
77°
45°
13
61°
49°
14
72°
53°
15
67°
45°
16
77°
45°
17
80°
49°
18
79°
48°
19
78°
49°
20
77°
51°
21
78°
51°
22
75°
50°
23
73°
50°
24
72°
49°
25
69°
48°
26
70°
50°
27
59°
35°
28
58°
34°
29
57°
36°
30
56°
33°
1
56°
34°
2
57°
33°
3
54°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Okanagan
Okanagan's September 2026 forecast shows daily high temperatures ranging from 54° to 80°, with overnight lows between 32° and 53°. The average high for September is 68° 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 Okanagan. See also: October | November | December.
