S
M
T
W
T
F
S
26
85°
63°
27
86°
63°
28
85°
64°
29
86°
63°
30
87°
64°
31
85°
63°
1
80°
62°
2
78°
60°
3
78°
57°
4
77°
62°
5
78°
62°
6
79°
59°
7
80°
59°
8
82°
60°
9
83°
62°
10
84°
62°
11
83°
61°
12
84°
62°
13
84°
61°
14
85°
60°
15
86°
62°
16
83°
60°
17
80°
61°
18
80°
62°
19
84°
59°
20
80°
54°
21
79°
53°
22
78°
54°
23
78°
55°
24
79°
54°
25
78°
53°
26
78°
59°
27
79°
56°
28
80°
53°
29
77°
54°
30
77°
53°
31
76°
52°
1
75°
53°
2
76°
56°
3
76°
53°
4
77°
52°
5
77°
50°
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 75° to 87°, with overnight lows between 50° and 64°. The average high for August is 81° 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 Dallas. See also: September | October | November.
