S
M
T
W
T
F
S
26
90°
53°
27
91°
55°
28
92°
56°
29
92°
56°
30
93°
57°
31
93°
57°
1
94°
56°
2
93°
57°
3
93°
56°
4
92°
56°
5
92°
55°
6
91°
56°
7
92°
55°
8
92°
56°
9
91°
56°
10
92°
55°
11
92°
55°
12
91°
54°
13
91°
53°
14
89°
55°
15
91°
54°
16
91°
53°
17
90°
50°
18
89°
51°
19
88°
50°
20
89°
50°
21
91°
53°
22
92°
53°
23
92°
52°
24
93°
53°
25
93°
54°
26
92°
53°
27
91°
53°
28
92°
52°
29
91°
47°
30
87°
46°
31
85°
52°
1
89°
51°
2
91°
47°
3
90°
46°
4
84°
45°
5
85°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Posey
Posey's August 2026 forecast shows daily high temperatures ranging from 84° to 94°, with overnight lows between 45° and 57°. The average high for August is 91° with an average low of 53°. 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 Posey. See also: September | October | November.
