S
M
T
W
T
F
S
26
86°
53°
27
87°
61°
28
89°
58°
29
85°
51°
30
88°
51°
31
89°
56°
1
90°
54°
2
76°
48°
3
81°
53°
4
87°
46°
5
87°
51°
6
86°
51°
7
90°
52°
8
89°
57°
9
82°
51°
10
88°
52°
11
85°
59°
12
86°
68°
13
88°
59°
14
84°
55°
15
83°
53°
16
86°
56°
17
86°
58°
18
92°
62°
19
90°
59°
20
88°
57°
21
89°
59°
22
93°
66°
23
80°
58°
24
83°
53°
25
88°
58°
26
87°
53°
27
83°
56°
28
80°
50°
29
70°
55°
30
71°
49°
31
81°
46°
1
80°
49°
2
76°
57°
3
66°
52°
4
69°
49°
5
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Penticton
Penticton's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Penticton. See also: September | October | November.
