S
M
T
W
T
F
S
26
88°
71°
27
100°
79°
28
92°
72°
29
89°
71°
30
88°
73°
31
91°
72°
1
90°
73°
2
93°
74°
3
93°
73°
4
92°
73°
5
92°
72°
6
91°
73°
7
93°
73°
8
93°
74°
9
94°
72°
10
92°
71°
11
90°
70°
12
92°
72°
13
89°
71°
14
85°
66°
15
84°
64°
16
83°
63°
17
84°
67°
18
85°
68°
19
85°
69°
20
89°
70°
21
89°
69°
22
90°
70°
23
88°
70°
24
92°
67°
25
88°
68°
26
87°
67°
27
84°
68°
28
88°
67°
29
87°
66°
30
83°
64°
31
83°
67°
1
86°
67°
2
84°
59°
3
82°
56°
4
79°
56°
5
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Cape Girardeau Township
Cape Girardeau Township's August 2026 forecast shows daily high temperatures ranging from 79° to 100°, with overnight lows between 56° and 79°. The average high for August is 88° with an average low of 69°. 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 Cape Girardeau Township. See also: September | October | November.