S
M
T
W
T
F
S
26
95°
77°
27
96°
76°
28
95°
77°
29
96°
76°
30
97°
77°
31
97°
77°
1
96°
76°
2
92°
77°
3
94°
77°
4
94°
76°
5
93°
77°
6
96°
77°
7
96°
76°
8
95°
77°
9
96°
77°
10
95°
76°
11
96°
76°
12
95°
75°
13
91°
75°
14
94°
74°
15
95°
74°
16
95°
74°
17
96°
73°
18
95°
72°
19
94°
71°
20
96°
73°
21
96°
72°
22
92°
71°
23
91°
69°
24
93°
70°
25
95°
72°
26
95°
71°
27
94°
72°
28
96°
73°
29
95°
71°
30
95°
71°
31
94°
74°
1
94°
74°
2
93°
73°
3
94°
73°
4
94°
70°
5
93°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lake Houston
Lake Houston's August 2026 forecast shows daily high temperatures ranging from 91° to 97°, with overnight lows between 69° and 77°. The average high for August is 95° with an average low of 74°. 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 Lake Houston. See also: September | October | November.