S
M
T
W
T
F
S
26
86°
64°
27
89°
66°
28
90°
68°
29
90°
68°
30
92°
67°
31
91°
65°
1
90°
67°
2
89°
67°
3
89°
60°
4
87°
60°
5
82°
59°
6
81°
58°
7
82°
59°
8
82°
58°
9
83°
59°
10
83°
59°
11
84°
60°
12
86°
64°
13
86°
66°
14
90°
66°
15
91°
62°
16
87°
64°
17
85°
56°
18
83°
56°
19
81°
59°
20
82°
64°
21
84°
64°
22
86°
66°
23
89°
65°
24
90°
63°
25
89°
59°
26
83°
57°
27
81°
56°
28
80°
58°
29
87°
63°
30
88°
62°
31
88°
62°
1
Hist. Avg.
83°
61°
2
Hist. Avg.
82°
61°
3
Hist. Avg.
82°
60°
4
Hist. Avg.
82°
60°
5
Hist. Avg.
82°
60°
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 80° to 92°, with overnight lows between 56° and 68°. The average high for August is 86° with an average low of 62°. 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.