S
M
T
W
T
F
S
26
79°
64°
27
81°
63°
28
82°
64°
29
82°
66°
30
83°
65°
31
82°
65°
1
80°
64°
2
76°
63°
3
75°
64°
4
77°
64°
5
78°
64°
6
79°
64°
7
81°
65°
8
82°
65°
9
82°
66°
10
81°
66°
11
82°
65°
12
81°
65°
13
82°
66°
14
85°
64°
15
84°
64°
16
79°
65°
17
82°
64°
18
82°
64°
19
81°
59°
20
80°
56°
21
72°
54°
22
72°
56°
23
73°
56°
24
75°
57°
25
73°
55°
26
72°
60°
27
72°
56°
28
73°
54°
29
71°
54°
30
72°
53°
31
71°
53°
1
70°
55°
2
71°
55°
3
71°
57°
4
70°
56°
5
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Toronto
Toronto's August 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 53° and 66°. The average high for August is 77° with an average low of 61°. 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.
