S
M
T
W
T
F
S
26
88°
70°
27
89°
64°
28
89°
66°
29
92°
67°
30
98°
66°
31
92°
67°
1
92°
65°
2
91°
65°
3
90°
66°
4
87°
64°
5
88°
65°
6
87°
64°
7
87°
65°
8
88°
67°
9
89°
67°
10
94°
70°
11
94°
69°
12
91°
71°
13
95°
68°
14
94°
62°
15
91°
63°
16
86°
67°
17
89°
68°
18
90°
68°
19
94°
69°
20
94°
70°
21
89°
67°
22
93°
68°
23
92°
67°
24
91°
68°
25
92°
67°
26
93°
67°
27
92°
66°
28
91°
66°
29
91°
67°
30
90°
66°
31
91°
65°
1
89°
65°
2
90°
64°
3
89°
57°
4
84°
56°
5
81°
57°
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 81° to 98°, with overnight lows between 56° and 71°. The average high for August is 90° 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 Arlington. See also: September | October | November.
