S
M
T
W
T
F
S
26
93°
70°
27
89°
74°
28
86°
68°
29
87°
68°
30
84°
69°
31
70°
61°
1
82°
63°
2
84°
59°
3
84°
65°
4
74°
57°
5
76°
54°
6
80°
54°
7
76°
57°
8
79°
53°
9
83°
63°
10
82°
64°
11
84°
66°
12
85°
67°
13
78°
67°
14
79°
64°
15
82°
69°
16
78°
62°
17
81°
56°
18
83°
52°
19
78°
60°
20
82°
60°
21
83°
57°
22
78°
53°
23
76°
60°
24
82°
60°
25
82°
59°
26
81°
58°
27
81°
57°
28
83°
58°
29
82°
57°
30
77°
55°
31
76°
56°
1
69°
55°
2
69°
53°
3
70°
53°
4
71°
57°
5
73°
55°
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 69° to 83°, with overnight lows between 52° and 60°. The average high for August is 78° with an average low of 57°. 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.
