S
M
T
W
T
F
S
30
92°
69°
31
92°
69°
1
91°
68°
2
92°
69°
3
92°
69°
4
91°
68°
5
91°
68°
6
90°
69°
7
91°
68°
8
90°
67°
9
89°
66°
10
88°
67°
11
89°
68°
12
90°
67°
13
90°
65°
14
77°
61°
15
76°
64°
16
86°
64°
17
88°
58°
18
83°
51°
19
75°
52°
20
78°
55°
21
79°
60°
22
82°
60°
23
82°
59°
24
83°
59°
25
80°
58°
26
83°
58°
27
84°
48°
28
72°
47°
29
73°
51°
30
75°
57°
1
81°
58°
2
81°
58°
3
83°
57°
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 72° to 92°, with overnight lows between 47° and 69°. The average high for September is 85° 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 September weather will actually feel in Toronto. See also: October | November | December.
