S
M
T
W
T
F
S
26
87°
68°
27
89°
68°
28
88°
69°
29
88°
69°
30
89°
68°
31
91°
70°
1
90°
69°
2
91°
70°
3
92°
70°
4
91°
71°
5
93°
71°
6
93°
70°
7
92°
69°
8
91°
69°
9
87°
68°
10
87°
68°
11
89°
69°
12
91°
69°
13
91°
68°
14
92°
70°
15
91°
69°
16
89°
67°
17
91°
67°
18
91°
65°
19
89°
64°
20
90°
65°
21
91°
66°
22
90°
65°
23
90°
66°
24
87°
63°
25
85°
61°
26
85°
61°
27
84°
60°
28
84°
60°
29
85°
61°
30
84°
60°
31
85°
60°
1
87°
61°
2
86°
60°
3
89°
64°
4
89°
59°
5
86°
63°
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 84° to 93°, with overnight lows between 59° and 71°. The average high for August is 89° with an average low of 66°. 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.
