S
M
T
W
T
F
S
30
74°
49°
31
73°
54°
1
73°
50°
2
74°
51°
3
73°
50°
4
70°
48°
5
70°
49°
6
71°
50°
7
69°
49°
8
72°
55°
9
73°
48°
10
75°
47°
11
71°
47°
12
71°
48°
13
73°
51°
14
76°
53°
15
77°
52°
16
76°
54°
17
77°
55°
18
76°
49°
19
66°
44°
20
67°
45°
21
66°
43°
22
65°
48°
23
Hist. Avg.
67°
45°
24
Hist. Avg.
67°
45°
25
Hist. Avg.
66°
44°
26
Hist. Avg.
66°
44°
27
Hist. Avg.
65°
43°
28
Hist. Avg.
65°
43°
29
Hist. Avg.
64°
42°
30
Hist. Avg.
64°
42°
1
Hist. Avg.
64°
42°
2
Hist. Avg.
63°
41°
3
Hist. Avg.
63°
41°
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 65° to 77°, with overnight lows between 43° and 55°. The average high for September is 72° 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 St. Michael. See also: October | November | December.
