S
M
T
W
T
F
S
26
86°
65°
27
87°
67°
28
91°
66°
29
87°
66°
30
87°
69°
31
88°
69°
1
88°
68°
2
91°
70°
3
92°
69°
4
90°
66°
5
92°
70°
6
92°
65°
7
87°
65°
8
87°
66°
9
88°
65°
10
87°
67°
11
89°
65°
12
88°
67°
13
87°
66°
14
90°
68°
15
90°
69°
16
89°
67°
17
91°
68°
18
89°
69°
19
86°
68°
20
86°
68°
21
87°
69°
22
86°
69°
23
91°
65°
24
91°
65°
25
90°
68°
26
92°
69°
27
92°
68°
28
91°
69°
29
90°
67°
30
89°
66°
31
89°
66°
1
88°
65°
2
88°
66°
3
86°
64°
4
88°
66°
5
89°
66°
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 86° to 92°, with overnight lows between 64° and 70°. The average high for August is 89° with an average low of 67°. 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.
