S
M
T
W
T
F
S
26
63°
44°
27
64°
33°
28
66°
49°
29
65°
37°
30
67°
44°
31
74°
50°
1
65°
49°
2
65°
47°
3
73°
38°
4
76°
39°
5
79°
37°
6
82°
39°
7
78°
49°
8
75°
37°
9
73°
43°
10
72°
41°
11
74°
41°
12
77°
40°
13
72°
48°
14
75°
36°
15
79°
35°
16
82°
36°
17
68°
45°
18
78°
46°
19
78°
37°
20
80°
39°
21
86°
37°
22
83°
45°
23
72°
42°
24
76°
40°
25
82°
39°
26
74°
48°
27
69°
45°
28
65°
37°
29
63°
47°
30
65°
42°
31
64°
42°
1
63°
40°
2
63°
34°
3
65°
36°
4
67°
35°
5
60°
37°
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 60° to 74°, with overnight lows between 34° and 48°. The average high for August is 65° with an average low of 40°. 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.
