S
M
T
W
T
F
S
30
75°
53°
31
70°
51°
1
69°
53°
2
69°
51°
3
70°
54°
4
72°
57°
5
77°
58°
6
77°
59°
7
74°
52°
8
76°
53°
9
69°
57°
10
77°
51°
11
77°
50°
12
71°
56°
13
76°
54°
14
76°
44°
15
72°
41°
16
62°
42°
17
63°
45°
18
66°
51°
19
67°
53°
20
68°
53°
21
68°
52°
22
72°
52°
23
71°
53°
24
72°
54°
25
73°
53°
26
73°
54°
27
71°
39°
28
72°
37°
29
57°
40°
30
58°
39°
1
57°
40°
2
58°
41°
3
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Vaughan
Vaughan's September 2026 forecast shows daily high temperatures ranging from 57° to 77°, with overnight lows between 37° and 59°. The average high for September is 70° with an average low of 50°. 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 Vaughan. See also: October | November | December.
