S
M
T
W
T
F
S
26
81°
54°
27
85°
51°
28
82°
54°
29
83°
57°
30
83°
52°
31
90°
53°
1
77°
58°
2
76°
53°
3
85°
50°
4
97°
56°
5
100°
56°
6
98°
56°
7
96°
56°
8
91°
52°
9
85°
52°
10
86°
53°
11
85°
55°
12
84°
54°
13
86°
54°
14
84°
53°
15
84°
54°
16
86°
53°
17
83°
52°
18
82°
53°
19
83°
51°
20
80°
51°
21
78°
54°
22
78°
50°
23
80°
55°
24
77°
48°
25
84°
53°
26
85°
55°
27
84°
55°
28
84°
56°
29
77°
54°
30
76°
48°
31
76°
51°
1
75°
52°
2
75°
48°
3
76°
50°
4
76°
50°
5
74°
49°
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 74° to 100°, with overnight lows between 48° and 56°. The average high for August is 83° with an average low of 53°. 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.
