S
M
T
W
T
F
S
26
91°
68°
27
82°
66°
28
81°
61°
29
81°
66°
30
82°
66°
31
82°
65°
1
85°
67°
2
84°
67°
3
82°
66°
4
81°
66°
5
83°
67°
6
88°
67°
7
81°
66°
8
83°
61°
9
79°
57°
10
79°
61°
11
80°
65°
12
83°
65°
13
80°
60°
14
79°
57°
15
79°
63°
16
81°
64°
17
80°
61°
18
79°
62°
19
81°
64°
20
84°
63°
21
78°
59°
22
79°
64°
23
84°
62°
24
89°
63°
25
89°
57°
26
88°
51°
27
78°
50°
28
76°
50°
29
77°
51°
30
78°
55°
31
80°
48°
1
84°
48°
2
75°
47°
3
73°
47°
4
74°
48°
5
75°
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 73° to 91°, with overnight lows between 47° and 68°. The average high for August is 81° with an average low of 60°. 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.
