S
M
T
W
T
F
S
30
84°
62°
31
85°
61°
1
84°
62°
2
84°
61°
3
83°
61°
4
84°
60°
5
84°
60°
6
83°
62°
7
85°
61°
8
84°
60°
9
79°
59°
10
82°
58°
11
83°
60°
12
82°
59°
13
83°
57°
14
71°
46°
15
71°
54°
16
73°
53°
17
72°
51°
18
71°
49°
19
76°
48°
20
78°
52°
21
77°
53°
22
78°
53°
23
76°
43°
24
72°
46°
25
71°
52°
26
71°
51°
27
77°
41°
28
72°
40°
29
67°
45°
30
68°
50°
1
70°
50°
2
75°
51°
3
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Toronto
Toronto's September 2026 forecast shows daily high temperatures ranging from 67° to 85°, with overnight lows between 40° and 62°. The average high for September is 77° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Toronto. See also: October | November | December.
