S
M
T
W
T
F
S
26
97°
76°
27
97°
79°
28
97°
78°
29
97°
77°
30
98°
79°
31
98°
76°
1
96°
80°
2
99°
81°
3
99°
77°
4
99°
76°
5
98°
77°
6
97°
77°
7
96°
77°
8
95°
76°
9
94°
76°
10
90°
74°
11
95°
74°
12
98°
76°
13
98°
80°
14
95°
76°
15
99°
78°
16
99°
74°
17
99°
74°
18
99°
78°
19
98°
81°
20
100°
77°
21
101°
81°
22
103°
82°
23
101°
80°
24
102°
79°
25
100°
80°
26
101°
81°
27
100°
82°
28
98°
73°
29
97°
75°
30
98°
77°
31
96°
77°
1
90°
77°
2
92°
78°
3
93°
76°
4
93°
76°
5
92°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Iah / Airport Area
Iah / Airport Area's August 2026 forecast shows daily high temperatures ranging from 90° to 98°, with overnight lows between 76° and 78°. The average high for August is 93° 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 Iah / Airport Area. See also: September | October | November.