Air Quality in Katy, United States

Clear
33.7°C · 47.2% humidity
33.7°
Feels 37.9°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
34 4pm
34
34
28 7pm
23
24
25 10pm
25
26
26 1am
26
27
27 4am
27
27
27 7am
27
27
27 10am
27
27
27 1pm
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
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
28
6.66 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Katy?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.56.66 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (1 station within 25 km)
6.66
Median
6.66
Average
6.66
Low
6.66
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +0.7

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: 2.1°C

Where are air quality stations near Katy?

28
Fire Station 90
14.9 km PM2.5: 6.7 µg/m³
–
Houston Westhollow
19.5 km
30
NE Corner Westpark & Wilcrest Dr
25.5 km PM2.5: 7.1 µg/m³
30
3838 Wilcrest Dr
25.5 km PM2.5: 7.3 µg/m³
28
11212 Westpark Dr
25.6 km PM2.5: 6.8 µg/m³
31
Fire Station 73
27.5 km PM2.5: 7.4 µg/m³

What cities are near Katy?

29 Cinco Ranch 31 Mission Bend 30 Pecan Grove 30 Alief 28 Cypress 29 New Territory 15 Rosenberg 30 Sugar Land 29 Stafford 29 Missouri City
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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 2026-06-09T00:40 UTC.