S
M
T
W
T
F
S
28
90°
73°
29
87°
74°
30
87°
75°
1
89°
75°
2
87°
76°
3
88°
73°
4
88°
72°
5
90°
72°
6
88°
73°
7
91°
73°
8
91°
74°
9
88°
72°
10
87°
73°
11
88°
74°
12
88°
74°
13
89°
75°
14
91°
74°
15
Hist. Avg.
90°
76°
16
Hist. Avg.
90°
76°
17
Hist. Avg.
91°
76°
18
Hist. Avg.
91°
76°
19
Hist. Avg.
91°
76°
20
Hist. Avg.
91°
76°
21
Hist. Avg.
91°
76°
22
Hist. Avg.
91°
76°
23
Hist. Avg.
91°
76°
24
Hist. Avg.
91°
76°
25
Hist. Avg.
91°
76°
26
Hist. Avg.
91°
76°
27
Hist. Avg.
91°
77°
28
Hist. Avg.
91°
77°
29
Hist. Avg.
91°
77°
30
Hist. Avg.
91°
77°
31
Hist. Avg.
91°
77°
1
Hist. Avg.
91°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Katy
Katy's July 2026 forecast shows daily high temperatures ranging from 87° to 91°, with overnight lows between 72° and 76°. The average high for July is 89° 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 July weather will actually feel in Katy. See also: August | September | October.
