S
M
T
W
T
F
S
26
88°
71°
27
91°
70°
28
92°
70°
29
90°
69°
30
89°
70°
31
88°
70°
1
89°
70°
2
89°
68°
3
90°
72°
4
93°
71°
5
92°
72°
6
92°
71°
7
91°
69°
8
90°
70°
9
93°
69°
10
92°
70°
11
91°
71°
12
90°
70°
13
89°
70°
14
89°
69°
15
88°
70°
16
91°
71°
17
92°
71°
18
92°
70°
19
91°
69°
20
88°
70°
21
91°
70°
22
92°
68°
23
89°
69°
24
88°
70°
25
87°
68°
26
87°
68°
27
89°
69°
28
91°
70°
29
91°
66°
30
87°
68°
31
87°
67°
1
88°
68°
2
88°
68°
3
89°
67°
4
88°
69°
5
87°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Arlington
Arlington's August 2026 forecast shows daily high temperatures ranging from 87° to 93°, with overnight lows between 66° and 72°. The average high for August is 90° with an average low of 69°. 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 Arlington. See also: September | October | November.
