Air Quality in Ellicott City, United States

Partly Cloudy
25.2°C · 52.3% humidity
25.2°
Feels 25.2°
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
27 8pm
27
27
39 11pm
37
34
32 2am
29
28
27 5am
28
28
28 8am
27
34
27 11am
27
27
25 2pm
25
25
27 5pm
27
27
AD 728×90

Air Quality Index Trend

45h · 31 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.

52.3%
Humidity
24.9 km/h
Wind WNW
1012.4 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
39
9.4 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Ellicott City?

Temperature & Precipitation

PM2.5 Trend

45h · 31 stations
PM2.59.4 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (1 station within 25 km)
9.4
Median
9.4
Average
9.4
Low
9.4
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +0.3

What is the 7-day forecast for Ellicott City?

08-03
27.2° 20.7°
9.62 mm
08-04
36.6° 24.8°
08-05
35.2° 21.2°
0.25 mm
08-06
31.2° 22.2°
08-07
34.4° 21.4°
2.94 mm
08-08
38.3° 22.3°
0.5 mm
08-09
36.7° 24.8°
0.31 mm
Both models agree Avg diff: 3.3°C

Where are air quality stations near Ellicott City?

25
Howard County Near Road, Maryland, USA
14.4 km PM2.5: 6.0 µg/m³
21
HU-Beltsville, Maryland, USA
24.6 km PM2.5: 5.0 µg/m³
30
Padonia, Maryland, USA
26.0 km PM2.5: 7.2 µg/m³

What cities are near Ellicott City?

39 Ilchester 39 Columbia 49 Catonsville 49 Arbutus 49 Woodlawn 39 West Elkridge 49 Milford Mill 39 Elkridge 39 Hanover 49 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 2026-08-08T03:06 UTC.