S
M
T
W
T
F
S
30
72°
66°
31
71°
66°
1
81°
68°
2
82°
67°
3
85°
66°
4
78°
62°
5
77°
61°
6
72°
59°
7
78°
57°
8
78°
59°
9
75°
69°
10
79°
58°
11
73°
52°
12
78°
55°
13
82°
57°
14
69°
53°
15
71°
62°
16
74°
57°
17
71°
54°
18
70°
51°
19
62°
52°
20
68°
54°
21
66°
52°
22
67°
51°
23
68°
50°
24
70°
52°
25
67°
52°
26
68°
50°
27
66°
51°
28
65°
45°
29
65°
49°
30
63°
50°
1
65°
51°
2
68°
49°
3
65°
49°
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 62° to 74°, with overnight lows between 45° and 62°. The average high for September is 67° with an average low of 52°. 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.
