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

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
AD 728×90

Air Quality Index Trend

48h · 1 stn

Katy'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
PM2.5
27
6.51 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.56.51 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
6.51
Median
6.51
Average
6.51
Low
6.51
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -0.0
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
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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.