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