S
M
T
W
T
F
S
26
105°
83°
27
101°
82°
28
100°
81°
29
101°
83°
30
101°
82°
31
102°
82°
1
102°
81°
2
101°
83°
3
102°
83°
4
102°
82°
5
101°
83°
6
102°
83°
7
101°
82°
8
100°
82°
9
101°
83°
10
101°
82°
11
100°
81°
12
100°
82°
13
101°
82°
14
101°
81°
15
98°
81°
16
96°
78°
17
98°
79°
18
99°
81°
19
99°
81°
20
98°
80°
21
100°
81°
22
100°
80°
23
98°
81°
24
98°
79°
25
98°
79°
26
96°
76°
27
97°
75°
28
96°
72°
29
91°
73°
30
91°
74°
31
92°
75°
1
90°
74°
2
90°
70°
3
91°
68°
4
88°
68°
5
89°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Northwest Dallas
Northwest Dallas's August 2026 forecast shows daily high temperatures ranging from 88° to 105°, with overnight lows between 68° and 83°. The average high for August is 98° with an average low of 79°. 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 Northwest Dallas. See also: September | October | November.
