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°
40°
24
65°
40°
25
66°
45°
26
70°
46°
27
70°
49°
28
68°
51°
29
71°
50°
30
69°
52°
1
70°
50°
2
69°
49°
3
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Orangeville
Orangeville's September 2026 forecast shows daily high temperatures ranging from 65° to 71°, with overnight lows between 40° and 52°. The average high for September is 69° with an average low of 48°. 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 Orangeville. See also: October | November | December.