S
M
T
W
T
F
S
26
83°
53°
27
82°
52°
28
77°
51°
29
73°
50°
30
73°
50°
31
76°
49°
1
80°
51°
2
81°
52°
3
75°
43°
4
74°
43°
5
78°
44°
6
81°
47°
7
75°
46°
8
76°
44°
9
74°
52°
10
82°
54°
11
83°
53°
12
84°
54°
13
84°
53°
14
83°
54°
15
84°
49°
16
83°
44°
17
82°
47°
18
78°
50°
19
74°
46°
20
73°
48°
21
72°
41°
22
72°
40°
23
73°
42°
24
74°
45°
25
78°
49°
26
80°
50°
27
81°
51°
28
83°
52°
29
82°
52°
30
81°
50°
31
81°
49°
1
80°
48°
2
79°
45°
3
78°
45°
4
75°
47°
5
72°
39°
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 72° to 84°, with overnight lows between 39° and 54°. The average high for August is 78° with an average low of 48°. 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.
