S
M
T
W
T
F
S
26
78°
61°
27
84°
67°
28
78°
65°
29
79°
67°
30
80°
66°
31
83°
64°
1
74°
68°
2
71°
65°
3
81°
65°
4
80°
63°
5
75°
65°
6
83°
70°
7
76°
69°
8
85°
63°
9
81°
68°
10
83°
65°
11
80°
64°
12
80°
64°
13
77°
60°
14
75°
59°
15
76°
60°
16
74°
59°
17
73°
58°
18
75°
61°
19
74°
59°
20
73°
60°
21
76°
57°
22
77°
62°
23
80°
62°
24
73°
60°
25
74°
60°
26
79°
62°
27
79°
61°
28
78°
58°
29
71°
55°
30
70°
54°
31
70°
54°
1
71°
58°
2
73°
60°
3
74°
60°
4
75°
59°
5
76°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Oakville
Oakville's August 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 54° and 68°. The average high for August is 76° with an average low of 60°. 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 Oakville. See also: September | October | November.
