S
M
T
W
T
F
S
28
90°
76°
29
91°
75°
30
92°
74°
1
93°
74°
2
94°
76°
3
94°
76°
4
95°
75°
5
95°
76°
6
94°
76°
7
95°
75°
8
96°
77°
9
96°
77°
10
95°
76°
11
94°
76°
12
95°
75°
13
94°
74°
14
95°
73°
15
96°
71°
16
94°
72°
17
93°
71°
18
94°
72°
19
94°
74°
20
92°
73°
21
92°
73°
22
93°
74°
23
93°
73°
24
94°
74°
25
94°
73°
26
93°
73°
27
93°
72°
28
92°
73°
29
92°
73°
30
93°
72°
31
93°
72°
1
94°
74°
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 90° to 96°, with overnight lows between 71° and 77°. The average high for July is 94° 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.
