Air Quality in Katy, United States

Windy
21.3°C · 62.9% humidity
21.3°
Feels 21.3°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
26 6pm
25
17
25 9pm
25
25
25 12am
25
25
13 3am
13
13
13 6am
13
25
25 9am
25
25
25 12pm
13
13
13 3pm
13
13
Station readings
26
25
17
CAMS model adj -12
37
37
37
37
37
37
37
37
37
25
25
25
25
25
37
37
37
37
37
25
25
25
25
25
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

PM2.56.41 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
6.41
Median
6.41
Average
5.82
Low
7.0
High
PM2.5 µg/m³ · Model: 8.9 · Bias: +2.5

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?

24
Fire Station 90
14.9 km PM2.5: 5.8 µg/m³
29
Houston Westhollow
19.5 km PM2.5: 7.0 µg/m³
22
NE Corner Westpark & Wilcrest Dr
25.5 km PM2.5: 5.3 µg/m³
22
3838 Wilcrest Dr
25.5 km PM2.5: 5.3 µg/m³
22
11212 Westpark Dr
25.6 km PM2.5: 5.2 µg/m³
26
Fire Station 73
27.5 km PM2.5: 6.2 µg/m³

What cities are near Katy?

24 Cinco Ranch 23 Mission Bend 23 Pecan Grove 24 Alief 27 Cypress 23 New Territory 22 Rosenberg 23 Sugar Land 24 Stafford 24 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 2026-04-09T21:22 UTC.