S
M
T
W
T
F
S
30
71°
47°
31
69°
52°
1
71°
56°
2
69°
53°
3
73°
54°
4
70°
49°
5
71°
50°
6
68°
49°
7
64°
46°
8
63°
46°
9
66°
52°
10
69°
46°
11
65°
43°
12
64°
49°
13
63°
43°
14
64°
41°
15
62°
42°
16
60°
40°
17
59°
39°
18
58°
41°
19
58°
43°
20
59°
44°
21
63°
44°
22
65°
46°
23
66°
49°
24
66°
45°
25
64°
50°
26
66°
42°
27
65°
36°
28
56°
38°
29
54°
46°
30
60°
42°
1
61°
43°
2
62°
44°
3
61°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Greater Sudbury
Greater Sudbury's September 2026 forecast shows daily high temperatures ranging from 54° to 73°, with overnight lows between 36° and 56°. The average high for September is 64° 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 Greater Sudbury. See also: October | November | December.
