S
M
T
W
T
F
S
30
69°
63°
31
68°
64°
1
81°
66°
2
77°
59°
3
77°
56°
4
72°
56°
5
77°
55°
6
78°
51°
7
80°
52°
8
75°
59°
9
80°
64°
10
64°
46°
11
78°
44°
12
76°
56°
13
64°
51°
14
66°
42°
15
73°
54°
16
69°
45°
17
71°
49°
18
62°
46°
19
65°
43°
20
65°
45°
21
62°
40°
22
66°
39°
23
66°
41°
24
67°
43°
25
72°
48°
26
73°
44°
27
73°
50°
28
73°
51°
29
71°
56°
30
63°
59°
1
65°
48°
2
60°
44°
3
61°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sault Ste. Marie
Sault Ste. Marie's September 2026 forecast shows daily high temperatures ranging from 60° to 73°, with overnight lows between 44° and 59°. The average high for September is 67° with an average low of 50°. 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 Sault Ste. Marie. See also: October | November | December.
