S
M
T
W
T
F
S
26
73°
59°
27
71°
58°
28
74°
61°
29
78°
61°
30
76°
60°
31
76°
61°
1
78°
60°
2
76°
61°
3
75°
60°
4
76°
59°
5
71°
59°
6
76°
61°
7
77°
59°
8
70°
57°
9
70°
58°
10
71°
59°
11
70°
60°
12
73°
59°
13
75°
61°
14
77°
60°
15
77°
59°
16
69°
56°
17
70°
50°
18
72°
56°
19
75°
59°
20
74°
57°
21
76°
58°
22
75°
54°
23
74°
53°
24
70°
51°
25
71°
54°
26
72°
52°
27
74°
53°
28
75°
54°
29
75°
57°
30
74°
57°
31
75°
56°
1
75°
58°
2
74°
52°
3
74°
47°
4
66°
47°
5
65°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Owen Sound
Owen Sound's August 2026 forecast shows daily high temperatures ranging from 65° to 78°, with overnight lows between 47° and 61°. The average high for August is 73° with an average low of 57°. 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 Owen Sound. See also: September | October | November.
