S
M
T
W
T
F
S
26
85°
69°
27
90°
72°
28
91°
69°
29
85°
70°
30
86°
72°
31
88°
71°
1
90°
71°
2
87°
74°
3
86°
70°
4
83°
70°
5
89°
72°
6
91°
72°
7
92°
71°
8
89°
69°
9
91°
70°
10
90°
69°
11
87°
68°
12
87°
67°
13
85°
68°
14
87°
67°
15
85°
65°
16
82°
64°
17
90°
71°
18
89°
70°
19
89°
70°
20
88°
69°
21
87°
68°
22
87°
69°
23
89°
70°
24
90°
70°
25
89°
69°
26
87°
69°
27
83°
68°
28
85°
69°
29
84°
67°
30
85°
68°
31
85°
68°
1
86°
66°
2
79°
61°
3
78°
61°
4
78°
62°
5
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Falls Church
Falls Church's August 2026 forecast shows daily high temperatures ranging from 78° to 92°, with overnight lows between 60° and 74°. The average high for August is 86° with an average low of 68°. 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 Falls Church. See also: September | October | November.
