Air Quality in Katy, United States
Clear
33.7°C · 47.2% humidity
33.7°
Feels 37.9°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Katy's air quality — share it
AQI Forecast
34
6pm
34
27
27
9pm
27
27
27
12am
27
27
27
3am
27
27
27
6am
27
27
27
9am
27
27
27
12pm
27
27
27
3pm
27
27
Air Quality Index Trend
48h · 1 stnKaty's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
47.2%
Humidity
30.6 km/h
Wind SW
1010.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.51 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Katy?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.56.51 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
6.51
Median
6.51
Average
6.51
Low
6.51
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -0.0
What is the 7-day forecast for Katy?
06-09
33.7° 21.3°
3.38 mm
06-10
31.4° 23.7°
4.63 mm
06-11
29.4° 22.5°
06-12
32.9° 22.2°
0.31 mm
06-13
32.2° 23.1°
1.37 mm
06-14
33.3° 23.0°
06-15
35.1° 25.6°
0.62 mm
Both models agree
Avg diff: 2.0°C
Where are air quality stations near Katy?
27
Fire Station 90
–
Houston Westhollow
28
NE Corner Westpark & Wilcrest Dr
29
3838 Wilcrest Dr
28
11212 Westpark Dr
30
Fire Station 73
What cities are near Katy?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:53 UTC.