Air Quality in Ellicott City, United States

Partly Cloudy
11.2°C · 67.6% humidity
11.2°
Feels 11.2°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast
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Air Quality Index Trend

46h · 22 stn

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

67.6%
Humidity
33.5 km/h
Wind NNE
1027.2 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
23
5.5 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Ellicott City?

Temperature & Precipitation

PM2.5 Trend

46h · 22 stations
PM2.55.5 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.0
Low
Station readings (3 stations within 25 km)
5.5
Median
6.4
Average
2.2
Low
9.6
High
PM2.5 µg/m³ · Model: 8.2 · Bias: +2.7
Both models agree Avg diff: 3.7°C

Where are air quality stations near Ellicott City?

13
Howard County Near Road, Maryland, USA
14.4 km PM2.5: 3.1 µg/m³
21
Howard County Near Road, Maryland, USA
14.4 km PM2.5: 5.0 µg/m³
37
HU-Beltsville, Maryland, USA
24.6 km PM2.5: 8.9 µg/m³
37
Padonia, Maryland, USA
26.0 km PM2.5: 8.9 µg/m³
38
Padonia, Maryland, USA
26.0 km PM2.5: 9.1 µg/m³

What cities are near Ellicott City?

23 Ilchester 23 Columbia 27 Catonsville 27 Arbutus 32 Woodlawn 23 West Elkridge 32 Milford Mill 23 Elkridge 23 Hanover 33 Lochearn
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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 2026-10-20T22:44 UTC.