S
M
T
W
T
F
S
26
65°
41°
27
66°
43°
28
68°
49°
29
72°
49°
30
67°
48°
31
66°
45°
1
66°
46°
2
67°
42°
3
69°
48°
4
73°
48°
5
74°
49°
6
74°
49°
7
67°
42°
8
67°
41°
9
69°
43°
10
70°
42°
11
71°
41°
12
73°
42°
13
74°
48°
14
74°
47°
15
73°
42°
16
68°
43°
17
66°
46°
18
66°
41°
19
64°
41°
20
64°
40°
21
65°
39°
22
65°
44°
23
69°
46°
24
65°
38°
25
62°
39°
26
62°
38°
27
64°
40°
28
70°
41°
29
70°
39°
30
69°
41°
31
70°
43°
1
69°
44°
2
70°
45°
3
69°
44°
4
69°
45°
5
68°
44°
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 62° to 74°, with overnight lows between 38° and 49°. The average high for August is 68° with an average low of 43°. 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.
