S
M
T
W
T
F
S
26
79°
51°
27
83°
55°
28
81°
60°
29
67°
61°
30
73°
58°
31
80°
56°
1
84°
57°
2
82°
68°
3
80°
59°
4
80°
53°
5
83°
54°
6
86°
60°
7
86°
68°
8
84°
63°
9
80°
58°
10
81°
52°
11
80°
63°
12
79°
54°
13
77°
58°
14
77°
53°
15
74°
48°
16
78°
65°
17
75°
61°
18
78°
54°
19
82°
60°
20
76°
49°
21
77°
48°
22
75°
50°
23
77°
54°
24
80°
55°
25
81°
55°
26
79°
57°
27
78°
53°
28
74°
51°
29
72°
47°
30
76°
52°
31
72°
46°
1
72°
46°
2
73°
47°
3
72°
52°
4
71°
53°
5
73°
49°
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 71° to 82°, with overnight lows between 46° and 65°. The average high for August is 76° with an average low of 52°. 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.
