Air Quality in Katy, United States
Clear
37.2°C · 33.0% humidity
37.2°
Feels 37.2°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Katy's air quality — share it
AQI Forecast
Calibrated
62
4pm
62
55
30
7pm
37
42
46
10pm
48
50
52
1am
53
53
54
4am
54
54
55
7am
55
55
55
10am
55
55
55
1pm
55
55
Station readings
46h ago
AQI 55
PM2.5 14.2 µg/m³ · 46h ago
Air Quality Index Trend
46h · 35 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.
33.0%
Humidity
31.8 km/h
Wind WSW
1012.3 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.3 µg/m³
PM10
27.4 µg/m³
050100150200300500
What is the weather forecast for Katy?
Temperature & Precipitation
PM2.5 Trend
46h · 35 stationsPM2.57.3 µg/m³
✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX4.4
Moderate
Station readings (1 station within 25 km)
7.3
Median
7.3
Average
7.3
Low
7.3
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +3.5
What is the 7-day forecast for Katy?
08-03
37.2° 23.7°
08-04
34.9° 25.1°
0.25 mm
08-05
36.2° 24.3°
0.13 mm
08-06
36.2° 25.0°
0.13 mm
08-07
36.3° 23.5°
0.19 mm
08-08
34.6° 24.1°
0.25 mm
08-09
35.3° 24.7°
0.19 mm
Both models agree
Avg diff: 1.4°C
Where are air quality stations near Katy?
24
Fire Station 90
25
Houston Westhollow
25
3838 Wilcrest Dr
24
11212 Westpark Dr
25
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 2026-08-08T00:55 UTC.