S
M
T
W
T
F
S
26
85°
69°
27
87°
64°
28
84°
66°
29
81°
61°
30
84°
57°
31
84°
60°
1
80°
68°
2
77°
65°
3
81°
62°
4
82°
57°
5
83°
57°
6
83°
62°
7
85°
69°
8
88°
70°
9
86°
68°
10
89°
73°
11
87°
66°
12
71°
64°
13
85°
64°
14
80°
69°
15
83°
69°
16
87°
71°
17
83°
67°
18
82°
59°
19
79°
65°
20
81°
64°
21
84°
61°
22
79°
57°
23
75°
53°
24
75°
52°
25
78°
56°
26
80°
61°
27
80°
59°
28
78°
58°
29
81°
63°
30
82°
62°
31
81°
63°
1
80°
57°
2
78°
56°
3
76°
58°
4
79°
62°
5
76°
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 75° to 82°, with overnight lows between 52° and 63°. The average high for August is 79° with an average low of 58°. 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.
