S
M
T
W
T
F
S
26
71°
59°
27
80°
58°
28
73°
56°
29
75°
48°
30
78°
48°
31
84°
49°
1
65°
56°
2
71°
51°
3
76°
45°
4
78°
49°
5
85°
49°
6
85°
52°
7
86°
53°
8
83°
50°
9
75°
51°
10
77°
54°
11
76°
54°
12
75°
53°
13
80°
50°
14
83°
51°
15
82°
50°
16
78°
49°
17
75°
51°
18
77°
50°
19
78°
52°
20
78°
49°
21
77°
47°
22
72°
46°
23
75°
50°
24
80°
51°
25
81°
50°
26
80°
51°
27
79°
50°
28
78°
48°
29
77°
49°
30
73°
47°
31
76°
48°
1
76°
50°
2
71°
48°
3
75°
49°
4
79°
48°
5
80°
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 83°, with overnight lows between 46° and 54°. The average high for August is 77° with an average low of 50°. 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.
