S
M
T
W
T
F
S
26
88°
70°
27
88°
70°
28
89°
71°
29
88°
71°
30
88°
70°
31
89°
73°
1
90°
72°
2
89°
73°
3
91°
73°
4
93°
72°
5
93°
73°
6
92°
73°
7
91°
72°
8
91°
73°
9
92°
73°
10
89°
72°
11
89°
72°
12
90°
73°
13
92°
72°
14
92°
72°
15
91°
71°
16
92°
71°
17
92°
72°
18
93°
71°
19
92°
72°
20
93°
70°
21
92°
71°
22
91°
70°
23
93°
71°
24
93°
69°
25
92°
66°
26
90°
66°
27
88°
65°
28
88°
65°
29
89°
66°
30
88°
65°
31
89°
65°
1
87°
64°
2
87°
65°
3
91°
66°
4
91°
69°
5
92°
69°
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 87° to 93°, with overnight lows between 64° and 73°. The average high for August is 90° with an average low of 70°. 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.
