S
M
T
W
T
F
S
26
91°
72°
27
91°
72°
28
90°
71°
29
90°
71°
30
91°
72°
31
92°
72°
1
90°
71°
2
85°
70°
3
84°
69°
4
83°
70°
5
83°
69°
6
84°
68°
7
84°
68°
8
85°
69°
9
87°
70°
10
89°
70°
11
89°
69°
12
86°
70°
13
87°
69°
14
89°
69°
15
84°
70°
16
84°
70°
17
88°
69°
18
90°
70°
19
89°
69°
20
88°
63°
21
86°
62°
22
82°
61°
23
82°
62°
24
83°
63°
25
84°
62°
26
83°
67°
27
87°
63°
28
86°
62°
29
82°
62°
30
81°
61°
31
80°
60°
1
80°
61°
2
81°
63°
3
79°
66°
4
80°
60°
5
82°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Frederick
Frederick's August 2026 forecast shows daily high temperatures ranging from 79° to 92°, with overnight lows between 60° and 72°. The average high for August is 86° with an average low of 67°. 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 Frederick. See also: September | October | November.
