S
M
T
W
T
F
S
26
85°
70°
27
84°
70°
28
83°
69°
29
84°
67°
30
79°
63°
31
76°
61°
1
77°
67°
2
77°
67°
3
79°
66°
4
83°
67°
5
80°
68°
6
80°
67°
7
77°
66°
8
76°
64°
9
76°
64°
10
78°
61°
11
81°
65°
12
81°
66°
13
83°
67°
14
84°
62°
15
83°
68°
16
83°
64°
17
84°
58°
18
76°
58°
19
73°
57°
20
74°
56°
21
75°
57°
22
76°
56°
23
76°
56°
24
77°
57°
25
79°
58°
26
81°
63°
27
81°
57°
28
74°
56°
29
73°
56°
30
74°
61°
31
76°
56°
1
77°
55°
2
74°
54°
3
73°
57°
4
75°
63°
5
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St. Clair Township
St. Clair Township's August 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 54° and 70°. The average high for August is 78° with an average low of 62°. 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. Clair Township. See also: September | October | November.
