S
M
T
W
T
F
S
27
60°
38°
28
67°
36°
29
66°
49°
30
66°
41°
1
57°
43°
2
63°
45°
3
63°
46°
4
67°
40°
5
71°
44°
6
67°
41°
7
65°
20°
8
72°
41°
9
68°
46°
10
54°
46°
11
58°
44°
12
60°
33°
13
58°
34°
14
66°
38°
15
65°
42°
16
66°
54°
17
65°
35°
18
55°
40°
19
56°
38°
20
57°
39°
21
55°
41°
22
54°
42°
23
54°
37°
24
54°
39°
25
53°
40°
26
54°
41°
27
47°
34°
28
57°
36°
29
56°
33°
30
54°
40°
31
54°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Penticton
Penticton's October 2026 forecast shows daily high temperatures ranging from 47° to 66°, with overnight lows between 31° and 54°. The average high for October is 57° with an average low of 39°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Penticton. See also: November | December | January.