S
M
T
W
T
F
S
26
95°
81°
27
95°
79°
28
95°
79°
29
95°
81°
30
95°
81°
31
95°
79°
1
93°
79°
2
99°
81°
3
97°
81°
4
95°
79°
5
97°
79°
6
95°
77°
7
95°
81°
8
93°
79°
9
93°
81°
10
86°
75°
11
91°
79°
12
93°
81°
13
95°
81°
14
91°
81°
15
95°
81°
16
97°
79°
17
97°
77°
18
95°
81°
19
95°
81°
20
97°
81°
21
100°
81°
22
102°
81°
23
100°
82°
24
99°
79°
25
99°
81°
26
99°
82°
27
99°
83°
28
97°
77°
29
98°
76°
30
97°
76°
31
96°
77°
1
91°
78°
2
92°
79°
3
93°
77°
4
93°
78°
5
92°
77°
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 91° to 98°, with overnight lows between 76° and 79°. The average high for August is 94° with an average low of 77°. 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.
