S
M
T
W
T
F
S
26
93°
73°
27
93°
72°
28
94°
72°
29
94°
73°
30
95°
73°
31
94°
72°
1
93°
72°
2
95°
75°
3
97°
75°
4
98°
73°
5
96°
71°
6
93°
70°
7
92°
71°
8
93°
72°
9
93°
71°
10
94°
73°
11
93°
72°
12
96°
75°
13
93°
73°
14
95°
73°
15
Hist. Avg.
95°
75°
16
Hist. Avg.
95°
75°
17
Hist. Avg.
95°
75°
18
Hist. Avg.
95°
75°
19
Hist. Avg.
95°
75°
20
Hist. Avg.
95°
75°
21
Hist. Avg.
95°
74°
22
Hist. Avg.
95°
74°
23
Hist. Avg.
95°
74°
24
Hist. Avg.
94°
74°
25
Hist. Avg.
94°
74°
26
Hist. Avg.
94°
74°
27
Hist. Avg.
94°
74°
28
Hist. Avg.
94°
73°
29
Hist. Avg.
94°
73°
30
Hist. Avg.
93°
73°
31
Hist. Avg.
93°
73°
1
Hist. Avg.
93°
73°
2
Hist. Avg.
93°
73°
3
Hist. Avg.
93°
72°
4
Hist. Avg.
92°
72°
5
Hist. Avg.
92°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Katy
Katy's August 2026 forecast shows daily high temperatures ranging from 92° to 98°, with overnight lows between 70° and 75°. The average high for August is 94° with an average low of 73°. 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 Katy. See also: September | October | November.
