S
M
T
W
T
F
S
26
91°
74°
27
93°
74°
28
84°
66°
29
84°
61°
30
N/A
31
74°
67°
1
75°
61°
2
80°
58°
3
79°
60°
4
81°
61°
5
80°
59°
6
82°
61°
7
83°
63°
8
86°
62°
9
87°
62°
10
87°
64°
11
85°
62°
12
86°
61°
13
83°
60°
14
79°
60°
15
78°
59°
16
79°
65°
17
85°
64°
18
79°
60°
19
78°
59°
20
80°
63°
21
82°
60°
22
76°
57°
23
76°
57°
24
77°
55°
25
76°
53°
26
75°
53°
27
76°
55°
28
77°
55°
29
80°
60°
30
80°
61°
31
76°
61°
1
84°
60°
2
79°
57°
3
75°
54°
4
81°
60°
5
83°
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 74° to 87°, with overnight lows between 53° and 67°. The average high for August is 80° 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 Toronto. See also: September | October | November.