S
M
T
W
T
F
S
26
83°
60°
27
83°
61°
28
73°
64°
29
78°
65°
30
80°
64°
31
84°
61°
1
84°
61°
2
77°
71°
3
79°
61°
4
83°
57°
5
84°
62°
6
89°
70°
7
89°
68°
8
85°
67°
9
86°
67°
10
82°
61°
11
82°
65°
12
82°
60°
13
83°
65°
14
84°
60°
15
82°
57°
16
74°
62°
17
80°
66°
18
81°
62°
19
80°
61°
20
72°
53°
21
81°
55°
22
76°
62°
23
76°
52°
24
72°
51°
25
71°
54°
26
75°
55°
27
72°
53°
28
71°
52°
29
73°
52°
30
73°
54°
31
74°
54°
1
71°
53°
2
72°
50°
3
71°
55°
4
75°
51°
5
70°
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 70° to 81°, with overnight lows between 50° and 62°. The average high for August is 74° 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.
