S
M
T
W
T
F
S
28
93°
79°
29
96°
77°
30
93°
77°
1
94°
77°
2
92°
76°
3
94°
77°
4
93°
74°
5
94°
74°
6
95°
78°
7
93°
75°
8
94°
76°
9
96°
77°
10
96°
75°
11
96°
76°
12
94°
75°
13
95°
76°
14
95°
75°
15
96°
76°
16
96°
76°
17
95°
76°
18
96°
77°
19
93°
76°
20
91°
76°
21
91°
75°
22
93°
76°
23
93°
77°
24
94°
77°
25
95°
75°
26
96°
76°
27
96°
76°
28
95°
75°
29
97°
77°
30
97°
77°
31
96°
76°
1
95°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Katy
Katy's July 2026 forecast shows daily high temperatures ranging from 91° to 97°, with overnight lows between 74° and 78°. The average high for July is 95° with an average low of 76°. 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.
