S
M
T
W
T
F
S
26
80°
64°
27
81°
64°
28
79°
61°
29
78°
57°
30
80°
61°
31
82°
62°
1
80°
60°
2
78°
61°
3
80°
63°
4
81°
62°
5
81°
63°
6
82°
57°
7
82°
61°
8
80°
62°
9
80°
60°
10
78°
59°
11
75°
58°
12
75°
60°
13
81°
61°
14
77°
60°
15
79°
61°
16
77°
60°
17
74°
60°
18
75°
59°
19
74°
59°
20
77°
60°
21
77°
59°
22
74°
58°
23
75°
59°
24
80°
60°
25
80°
60°
26
79°
59°
27
76°
55°
28
71°
56°
29
73°
57°
30
76°
59°
31
79°
59°
1
79°
58°
2
77°
53°
3
69°
50°
4
67°
50°
5
74°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Vaughan
Vaughan's August 2026 forecast shows daily high temperatures ranging from 67° to 82°, with overnight lows between 49° and 64°. The average high for August is 77° with an average low of 59°. 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 Vaughan. See also: September | October | November.