S
M
T
W
T
F
S
26
87°
57°
27
90°
55°
28
89°
57°
29
87°
57°
30
84°
53°
31
83°
52°
1
81°
50°
2
81°
51°
3
80°
53°
4
82°
55°
5
88°
54°
6
86°
56°
7
87°
57°
8
89°
56°
9
87°
54°
10
88°
56°
11
88°
51°
12
84°
52°
13
79°
50°
14
78°
51°
15
82°
50°
16
82°
53°
17
85°
53°
18
80°
48°
19
76°
45°
20
75°
43°
21
75°
45°
22
77°
45°
23
75°
50°
24
78°
47°
25
82°
50°
26
82°
47°
27
73°
42°
28
74°
45°
29
73°
39°
30
72°
38°
31
72°
41°
1
73°
42°
2
73°
40°
3
71°
39°
4
72°
43°
5
80°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Houston
Houston's August 2026 forecast shows daily high temperatures ranging from 71° to 90°, with overnight lows between 38° and 57°. The average high for August is 80° with an average low of 49°. 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 Houston. See also: September | October | November.
