S
M
T
W
T
F
S
26
78°
59°
27
78°
61°
28
82°
65°
29
82°
67°
30
82°
65°
31
82°
61°
1
79°
68°
2
N/A
3
81°
61°
4
79°
64°
5
80°
66°
6
78°
66°
7
78°
65°
8
82°
66°
9
84°
68°
10
82°
66°
11
80°
64°
12
79°
63°
13
77°
65°
14
76°
63°
15
79°
64°
16
77°
58°
17
80°
64°
18
76°
63°
19
79°
64°
20
76°
62°
21
73°
60°
22
76°
64°
23
80°
65°
24
77°
64°
25
76°
64°
26
77°
63°
27
79°
64°
28
78°
63°
29
75°
62°
30
76°
63°
31
79°
62°
1
75°
60°
2
70°
58°
3
69°
59°
4
70°
60°
5
74°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Toronto
Toronto's August 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 58° and 68°. The average high for August is 77° with an average low of 63°. 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 Toronto. See also: September | October | November.