S
M
T
W
T
F
S
30
77°
62°
31
79°
63°
1
79°
63°
2
76°
57°
3
69°
54°
4
67°
54°
5
74°
53°
6
68°
50°
7
70°
59°
8
75°
60°
9
77°
61°
10
78°
56°
11
75°
49°
12
67°
59°
13
75°
59°
14
75°
60°
15
74°
60°
16
76°
59°
17
77°
60°
18
77°
60°
19
76°
58°
20
74°
49°
21
69°
47°
22
63°
55°
23
63°
57°
24
66°
57°
25
71°
53°
26
72°
45°
27
67°
44°
28
60°
45°
29
61°
44°
30
60°
45°
1
63°
51°
2
64°
54°
3
68°
53°
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 60° to 79°, with overnight lows between 44° and 63°. The average high for September is 71° with an average low of 55°. 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.
