S
M
T
W
T
F
S
30
74°
63°
31
71°
64°
1
82°
67°
2
78°
66°
3
76°
60°
4
74°
57°
5
71°
55°
6
72°
55°
7
75°
52°
8
79°
54°
9
75°
64°
10
72°
54°
11
73°
49°
12
80°
47°
13
73°
54°
14
64°
47°
15
69°
46°
16
69°
54°
17
70°
53°
18
64°
46°
19
64°
43°
20
67°
46°
21
58°
43°
22
N/A
23
67°
48°
24
67°
50°
25
65°
51°
26
66°
50°
27
66°
51°
28
67°
52°
29
70°
54°
30
67°
55°
1
66°
51°
2
67°
52°
3
65°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Collingwood
Collingwood's September 2026 forecast shows daily high temperatures ranging from 65° to 70°, with overnight lows between 48° and 55°. 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 Collingwood. See also: October | November | December.
