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
73°
57°
16
78°
61°
17
77°
59°
18
71°
53°
19
63°
49°
20
67°
43°
21
61°
38°
22
63°
41°
23
63°
43°
24
64°
45°
25
66°
47°
26
67°
48°
27
68°
47°
28
67°
46°
29
68°
48°
30
67°
49°
1
65°
48°
2
66°
42°
3
59°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bradford West Gwillimbury
Bradford West Gwillimbury's September 2026 forecast shows daily high temperatures ranging from 59° to 68°, with overnight lows between 38° and 49°. The average high for September is 65° with an average low of 45°. 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 Bradford West Gwillimbury. See also: October | November | December.
