S
M
T
W
T
F
S
26
78°
52°
27
81°
55°
28
86°
58°
29
80°
55°
30
87°
59°
31
87°
55°
1
79°
53°
2
79°
55°
3
84°
58°
4
87°
60°
5
87°
59°
6
86°
61°
7
87°
61°
8
86°
60°
9
87°
60°
10
79°
53°
11
77°
52°
12
79°
53°
13
81°
56°
14
79°
52°
15
78°
53°
16
79°
50°
17
78°
51°
18
81°
53°
19
86°
57°
20
88°
56°
21
87°
54°
22
86°
50°
23
77°
50°
24
77°
51°
25
79°
49°
26
84°
51°
27
85°
57°
28
84°
56°
29
79°
50°
30
76°
53°
31
79°
56°
1
82°
52°
2
75°
48°
3
72°
47°
4
75°
49°
5
80°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Dallas
Dallas's August 2026 forecast shows daily high temperatures ranging from 72° to 88°, with overnight lows between 47° and 61°. The average high for August is 82° with an average low of 54°. 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 Dallas. See also: September | October | November.
