S
M
T
W
T
F
S
28
91°
81°
29
93°
81°
30
93°
79°
1
93°
79°
2
90°
77°
3
93°
77°
4
93°
79°
5
93°
77°
6
95°
81°
7
93°
77°
8
95°
77°
9
93°
79°
10
91°
79°
11
89°
79°
12
90°
79°
13
82°
77°
14
81°
73°
15
86°
75°
16
91°
77°
17
91°
79°
18
91°
79°
19
95°
77°
20
95°
77°
21
95°
77°
22
100°
81°
23
89°
79°
24
92°
77°
25
93°
76°
26
94°
78°
27
94°
77°
28
95°
78°
29
97°
77°
30
96°
79°
31
96°
80°
1
93°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Houston Airport
Houston Airport's July 2026 forecast shows daily high temperatures ranging from 89° to 100°, with overnight lows between 76° and 81°. The average high for July is 94° with an average low of 78°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Houston Airport. See also: August | September | October.