S
M
T
W
T
F
S
30
72°
52°
31
76°
56°
1
78°
51°
2
72°
50°
3
71°
51°
4
72°
55°
5
76°
58°
6
78°
57°
7
77°
57°
8
70°
56°
9
72°
57°
10
76°
56°
11
71°
55°
12
75°
56°
13
72°
54°
14
68°
47°
15
67°
49°
16
68°
48°
17
67°
51°
18
70°
51°
19
73°
53°
20
74°
54°
21
70°
48°
22
72°
50°
23
66°
52°
24
70°
50°
25
70°
44°
26
65°
50°
27
64°
46°
28
Hist. Avg.
66°
48°
29
Hist. Avg.
66°
48°
30
Hist. Avg.
66°
48°
1
Hist. Avg.
65°
48°
2
Hist. Avg.
65°
47°
3
Hist. Avg.
64°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in St. Michael
St. Michael's September 2026 forecast shows daily high temperatures ranging from 64° to 78°, with overnight lows between 44° and 58°. The average high for September is 71° with an average low of 52°. 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.
