S
M
T
W
T
F
S
26
82°
61°
27
83°
67°
28
85°
68°
29
84°
68°
30
83°
69°
31
84°
71°
1
86°
70°
2
89°
75°
3
85°
70°
4
83°
72°
5
86°
73°
6
91°
76°
7
89°
71°
8
87°
71°
9
88°
68°
10
87°
67°
11
87°
67°
12
84°
65°
13
83°
64°
14
84°
65°
15
85°
63°
16
81°
62°
17
88°
69°
18
87°
67°
19
87°
69°
20
88°
67°
21
86°
65°
22
86°
68°
23
87°
69°
24
89°
69°
25
88°
68°
26
84°
68°
27
81°
67°
28
84°
67°
29
83°
66°
30
84°
67°
31
84°
66°
1
85°
65°
2
78°
60°
3
78°
60°
4
78°
61°
5
77°
59°
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 77° to 91°, with overnight lows between 59° and 76°. The average high for August is 85° 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.
