S
M
T
W
T
F
S
26
81°
60°
27
82°
61°
28
84°
66°
29
87°
67°
30
88°
66°
31
87°
67°
1
88°
67°
2
88°
68°
3
87°
68°
4
88°
66°
5
87°
66°
6
89°
67°
7
88°
67°
8
86°
65°
9
86°
66°
10
85°
63°
11
86°
60°
12
81°
59°
13
81°
59°
14
82°
60°
15
83°
59°
16
82°
61°
17
84°
65°
18
85°
64°
19
86°
65°
20
85°
62°
21
86°
58°
22
81°
61°
23
80°
58°
24
Hist. Avg.
84°
60°
25
Hist. Avg.
84°
60°
26
Hist. Avg.
84°
60°
27
Hist. Avg.
84°
60°
28
Hist. Avg.
84°
60°
29
Hist. Avg.
84°
60°
30
Hist. Avg.
83°
59°
31
Hist. Avg.
83°
59°
1
Hist. Avg.
83°
59°
2
Hist. Avg.
83°
58°
3
Hist. Avg.
83°
58°
4
Hist. Avg.
82°
58°
5
Hist. Avg.
82°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Houston
Houston's August 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 58° and 68°. The average high for August is 85° with an average low of 63°. 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.