S
M
T
W
T
F
S
26
84°
66°
27
86°
66°
28
88°
70°
29
81°
68°
30
82°
64°
31
86°
68°
1
86°
64°
2
79°
73°
3
88°
72°
4
86°
68°
5
86°
72°
6
91°
72°
7
90°
70°
8
91°
70°
9
90°
72°
10
91°
68°
11
88°
68°
12
86°
70°
13
90°
72°
14
81°
73°
15
88°
70°
16
79°
72°
17
91°
72°
18
86°
68°
19
88°
64°
20
88°
68°
21
79°
63°
22
79°
64°
23
82°
63°
24
81°
61°
25
81°
55°
26
85°
67°
27
88°
65°
28
84°
65°
29
83°
65°
30
87°
67°
31
92°
67°
1
95°
69°
2
93°
69°
3
91°
68°
4
92°
68°
5
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Ashburn
Ashburn's August 2026 forecast shows daily high temperatures ranging from 82° to 95°, with overnight lows between 60° and 69°. The average high for August is 88° with an average low of 66°. 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 Ashburn. See also: September | October | November.
