S
M
T
W
T
F
S
30
69°
49°
31
67°
42°
1
63°
46°
2
69°
47°
3
72°
47°
4
72°
39°
5
62°
38°
6
60°
39°
7
61°
37°
8
59°
34°
9
58°
38°
10
57°
42°
11
59°
41°
12
60°
44°
13
63°
41°
14
62°
46°
15
66°
42°
16
65°
43°
17
66°
33°
18
57°
39°
19
56°
43°
20
65°
45°
21
61°
38°
22
57°
34°
23
56°
36°
24
53°
34°
25
53°
32°
26
55°
35°
27
54°
40°
28
53°
36°
29
57°
35°
30
61°
40°
1
57°
39°
2
61°
39°
3
50°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Michael
St. Michael's September 2026 forecast shows daily high temperatures ranging from 50° to 72°, with overnight lows between 32° and 49°. The average high for September is 60° with an average low of 40°. 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 St. Michael. See also: October | November | December.
