Air Quality in Katy, United States

Windy
21.3°C · 62.9% humidity
21.3°
Feels 21.3°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
25 7pm
25
12
24 10pm
24
24
24 1am
24
12
12 4am
12
12
12 7am
24
24
24 10am
24
24
12 1pm
12
12
12 4pm
12
24
Station readings
25
25
12
CAMS model adj -13
37
37
37
37
37
37
37
37
25
25
25
25
25
37
37
37
37
37
25
25
25
25
25
37
AD 728×90

PM2.5 Trend (24h)

29h · 1 station
62.9%
Humidity
72.2 km/h
Wind SE
1018.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Katy?

Temperature & Precipitation

PM2.57.82 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
7.82
Median
7.82
Average
5.63
Low
10.0
High
PM2.5 µg/m³ · Model: 8.9 · Bias: +1.1

What is the 7-day forecast for Katy?

04-09
21.8° 14.0°
04-10
24.9° 16.2°
0.06 mm
04-11
27.7° 16.1°
04-12
27.9° 17.7°
0.06 mm
04-13
28.6° 20.1°
0.13 mm
04-14
30.3° 21.7°
0.44 mm
04-15
29.3° 21.3°
1.44 mm
Both models agree Avg diff: 1.7°C

Where are air quality stations near Katy?

23
Fire Station 90
14.9 km PM2.5: 5.5 µg/m³
42
Houston Westhollow
19.5 km PM2.5: 10.0 µg/m³
21
NE Corner Westpark & Wilcrest Dr
25.5 km PM2.5: 5.1 µg/m³
22
3838 Wilcrest Dr
25.5 km PM2.5: 5.2 µg/m³
21
11212 Westpark Dr
25.6 km PM2.5: 5.1 µg/m³
25
Fire Station 73
27.5 km PM2.5: 6.0 µg/m³

What cities are near Katy?

23 Cinco Ranch 23 Mission Bend 23 Pecan Grove 23 Alief 24 Cypress 23 New Territory 28 Rosenberg 23 Sugar Land 23 Stafford 23 Missouri City

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T22:13 UTC.