S
M
T
W
T
F
S
30
78°
52°
31
80°
53°
1
72°
52°
2
72°
45°
3
71°
51°
4
74°
54°
5
70°
46°
6
71°
46°
7
70°
43°
8
68°
47°
9
69°
46°
10
Hist. Avg.
74°
46°
11
Hist. Avg.
73°
46°
12
Hist. Avg.
73°
46°
13
Hist. Avg.
72°
45°
14
Hist. Avg.
72°
45°
15
Hist. Avg.
72°
45°
16
Hist. Avg.
71°
44°
17
Hist. Avg.
71°
44°
18
Hist. Avg.
70°
44°
19
Hist. Avg.
70°
44°
20
Hist. Avg.
69°
43°
21
Hist. Avg.
69°
43°
22
Hist. Avg.
68°
43°
23
Hist. Avg.
68°
43°
24
Hist. Avg.
68°
42°
25
Hist. Avg.
67°
42°
26
Hist. Avg.
67°
42°
27
Hist. Avg.
66°
42°
28
Hist. Avg.
66°
41°
29
Hist. Avg.
65°
41°
30
Hist. Avg.
65°
41°
1
Hist. Avg.
64°
41°
2
Hist. Avg.
64°
41°
3
Hist. Avg.
64°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Penticton 2
Penticton 2's September 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 43° and 54°. The average high for September is 72° 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 Penticton 2. See also: October | November | December.
