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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Katy, TX
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September
Average Temperature
High
32°
Feels 36
Low
22°
Feels 22
Average Precipitation
10 Days
Rain amount
73.8mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
35°
7
36°
8
36°
9
35°
10
35°
11
35°
12
35°
13
35°
14
35°
15
33°
16
34°
17
34°
18
34°
19
34°
20
33°
21
22
23
24
25
26
27
28
29
30
Forecast
Sunday, September 6, 2026
Day
35°
Feels 40
Wind
7 km/h SE
Gust
11 km/h
Humidity
46%
P.O.P
40%
Rain
<1 mm
Night
25°
Feels 25
Wind
11 km/h S
Gust
16 km/h
Humidity
95%
P.O.P
0%
Historical Averages
Sep 6
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.