S
M
T
W
T
F
S
26
78°
59°
27
84°
62°
28
85°
60°
29
87°
59°
30
79°
56°
31
81°
55°
1
78°
56°
2
78°
56°
3
78°
55°
4
78°
56°
5
79°
58°
6
79°
62°
7
77°
64°
8
82°
60°
9
81°
60°
10
84°
59°
11
83°
63°
12
80°
58°
13
86°
53°
14
77°
60°
15
79°
62°
16
80°
57°
17
78°
53°
18
77°
54°
19
76°
54°
20
78°
54°
21
76°
53°
22
76°
55°
23
77°
56°
24
79°
51°
25
74°
60°
26
74°
58°
27
79°
60°
28
74°
51°
29
74°
55°
30
77°
51°
31
76°
50°
1
73°
57°
2
73°
50°
3
74°
49°
4
72°
57°
5
73°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Michael
St. Michael's August 2026 forecast shows daily high temperatures ranging from 72° to 87°, with overnight lows between 49° and 64°. The average high for August is 78° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in St. Michael. See also: September | October | November.