Air Quality in Westminster, United States

Cloudy
20.0°C · 89.6% humidity
20.0°
Feels 20.0°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
25 3am
25
25
25 6am
25
25
27 9am
27
27
27 12pm
34
34
34 3pm
27
27
27 6pm
27
27
34 9pm
34
34
34 12am
34
34
AD 728×90

Air Quality Index Trend

42h · 2 stn

Westminster's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

89.6%
Humidity
29.6 km/h
Wind SSW
1015.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
25
6.05 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

42h · 2 stations
PM2.56.05 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
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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 2026-06-09T10:46 UTC.