S
M
T
W
T
F
S
30
65°
50°
31
67°
53°
1
71°
54°
2
68°
54°
3
69°
49°
4
66°
46°
5
66°
45°
6
67°
46°
7
67°
50°
8
64°
50°
9
64°
43°
10
61°
41°
11
63°
39°
12
58°
36°
13
61°
41°
14
60°
39°
15
58°
37°
16
57°
39°
17
57°
37°
18
58°
38°
19
58°
35°
20
56°
37°
21
59°
38°
22
60°
44°
23
64°
38°
24
60°
36°
25
56°
45°
26
64°
44°
27
61°
42°
28
58°
39°
29
54°
39°
30
54°
34°
1
52°
43°
2
60°
44°
3
64°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sainte-Marie
Sainte-Marie's September 2026 forecast shows daily high temperatures ranging from 52° to 71°, with overnight lows between 32° and 54°. The average high for September is 61° with an average low of 42°. 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 Sainte-Marie. See also: October | November | December.
