S
M
T
W
T
F
S
26
89°
74°
27
89°
66°
28
88°
67°
29
89°
70°
30
90°
69°
31
91°
72°
1
92°
72°
2
91°
69°
3
89°
68°
4
87°
66°
5
88°
67°
6
87°
67°
7
88°
68°
8
88°
67°
9
89°
71°
10
92°
70°
11
89°
72°
12
91°
72°
13
92°
71°
14
94°
72°
15
94°
67°
16
93°
66°
17
90°
68°
18
92°
70°
19
92°
65°
20
87°
64°
21
86°
64°
22
86°
66°
23
87°
65°
24
92°
68°
25
91°
69°
26
93°
69°
27
93°
66°
28
86°
64°
29
86°
69°
30
91°
68°
31
90°
68°
1
91°
67°
2
90°
68°
3
90°
67°
4
89°
67°
5
86°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sikeston
Sikeston's August 2026 forecast shows daily high temperatures ranging from 86° to 94°, with overnight lows between 64° and 74°. The average high for August is 90° with an average low of 68°. 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 Sikeston. See also: September | October | November.