S
M
T
W
T
F
S
26
102°
79°
27
102°
79°
28
101°
78°
29
101°
78°
30
102°
79°
31
102°
79°
1
102°
78°
2
101°
79°
3
99°
72°
4
96°
75°
5
100°
74°
6
102°
76°
7
103°
78°
8
104°
73°
9
102°
72°
10
96°
78°
11
103°
77°
12
103°
74°
13
102°
70°
14
94°
72°
15
94°
75°
16
97°
72°
17
99°
68°
18
93°
68°
19
92°
74°
20
93°
73°
21
93°
75°
22
99°
75°
23
99°
74°
24
98°
73°
25
98°
73°
26
97°
68°
27
96°
67°
28
90°
68°
29
91°
71°
30
93°
70°
31
90°
67°
1
90°
68°
2
91°
69°
3
92°
71°
4
94°
65°
5
92°
65°
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 90° to 104°, with overnight lows between 65° and 79°. The average high for August is 97° with an average low of 73°. 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.
