S
M
T
W
T
F
S
26
76°
59°
27
83°
62°
28
82°
66°
29
78°
59°
30
84°
57°
31
85°
60°
1
77°
66°
2
77°
66°
3
80°
63°
4
85°
55°
5
89°
66°
6
88°
63°
7
84°
68°
8
86°
66°
9
86°
62°
10
82°
66°
11
75°
64°
12
75°
64°
13
83°
64°
14
77°
63°
15
80°
70°
16
84°
68°
17
79°
59°
18
81°
60°
19
80°
61°
20
74°
53°
21
73°
52°
22
74°
54°
23
78°
58°
24
76°
59°
25
77°
57°
26
78°
54°
27
77°
55°
28
74°
52°
29
75°
55°
30
77°
58°
31
80°
58°
1
82°
59°
2
82°
59°
3
81°
58°
4
81°
58°
5
78°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fredericktown
Fredericktown's August 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 52° and 70°. The average high for August is 78° with an average low of 58°. 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 Fredericktown. See also: September | October | November.